70087617792 has 90 divisors (see below), whose sum is σ = 208988656338. Its totient is φ = 23362532352.

The previous prime is 70087617779. The next prime is 70087617793. The reversal of 70087617792 is 29771678007.

It can be written as a sum of positive squares in only one way, i.e., 68233798656 + 1853819136 = 261216^2 + 43056^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70087617793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1669263 + ... + 1710734.

Almost surely, 2^70087617792 is an apocalyptic number.

70087617792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70087617792 is an abundant number, since it is smaller than the sum of its proper divisors (138901038546).

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

70087617792 is an equidigital number, since it uses as much as digits as its factorization.

70087617792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380025 (or 3380002 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 54.

The spelling of 70087617792 in words is "seventy billion, eighty-seven million, six hundred seventeen thousand, seven hundred ninety-two".