67492849536 has 640 divisors, whose sum is σ = 238506681600. Its totient is φ = 18623582208.

The previous prime is 67492849517. The next prime is 67492849547. The reversal of 67492849536 is 63594829476.

67492849536 is a `hidden beast` number, since 6 + 7 + 4 + 92 + 8 + 4 + 9 + 536 = 666.

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

Its product of digits (78382080) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 758346580 + ... + 758346668.

It is an arithmetic number, because the mean of its divisors is an integer number (372666690).

Almost surely, 2^67492849536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67492849536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119253340800).

67492849536 is an abundant number, since it is smaller than the sum of its proper divisors (171013832064).

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

67492849536 is an frugal number, since it uses more digits than its factorization.

67492849536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 144 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 67492849536 in words is "sixty-seven billion, four hundred ninety-two million, eight hundred forty-nine thousand, five hundred thirty-six".