718336978632 has 384 divisors, whose sum is σ = 2492920335360. Its totient is φ = 181801635840.

The previous prime is 718336978621. The next prime is 718336978651. The reversal of 718336978632 is 236879633817.

718336978632 is a `hidden beast` number, since 71 + 83 + 369 + 78 + 63 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 718336978632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17676657 + ... + 17717247.

It is an arithmetic number, because the mean of its divisors is an integer number (6491980040).

Almost surely, 2^718336978632 is an apocalyptic number.

718336978632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718336978632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246460167680).

718336978632 is an abundant number, since it is smaller than the sum of its proper divisors (1774583356728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718336978632 is a wasteful number, since it uses less digits than its factorization.

718336978632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733 (or 40726 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 718336978632 in words is "seven hundred eighteen billion, three hundred thirty-six million, nine hundred seventy-eight thousand, six hundred thirty-two".