70987725216 has 384 divisors, whose sum is σ = 227043129600. Its totient is φ = 21499084800.

The previous prime is 70987725199. The next prime is 70987725223. The reversal of 70987725216 is 61252778907.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44338816 + ... + 44340416.

It is an arithmetic number, because the mean of its divisors is an integer number (591258150).

Almost surely, 2^70987725216 is an apocalyptic number.

70987725216 is a gapful number since it is divisible by the number (76) 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 70987725216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113521564800).

70987725216 is an abundant number, since it is smaller than the sum of its proper divisors (156055404384).

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

70987725216 is a wasteful number, since it uses less digits than its factorization.

70987725216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 70987725216 in words is "seventy billion, nine hundred eighty-seven million, seven hundred twenty-five thousand, two hundred sixteen".