70700515688 has 64 divisors (see below), whose sum is σ = 153923742720. Its totient is φ = 30087731200.

The previous prime is 70700515531. The next prime is 70700515703. The reversal of 70700515688 is 88651500707.

It is a happy number.

It is a super-2 number, since 2×70700515688² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162020 + ... + 409452.

It is an arithmetic number, because the mean of its divisors is an integer number (2405058480).

Almost surely, 2^70700515688 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 70700515688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76961871360).

70700515688 is an abundant number, since it is smaller than the sum of its proper divisors (83223227032).

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

70700515688 is a wasteful number, since it uses less digits than its factorization.

70700515688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247658 (or 247654 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 70700515688 in words is "seventy billion, seven hundred million, five hundred fifteen thousand, six hundred eighty-eight".