70046470521 has 10 divisors (see below), whose sum is σ = 104637320282. Its totient is φ = 46697646960.

The previous prime is 70046470513. The next prime is 70046470553. The reversal of 70046470521 is 12507464007.

70046470521 is a `hidden beast` number, since 7 + 0 + 0 + 4 + 64 + 70 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64432714896 + 5613755625 = 253836^2 + 74925^2 .

It is not a de Polignac number, because 70046470521 - 2³ = 70046470513 is a prime.

It is a super-2 number, since 2×70046470521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70046470321) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 432385540 + ... + 432385701.

Almost surely, 2^70046470521 is an apocalyptic number.

It is an amenable number.

70046470521 is a deficient number, since it is larger than the sum of its proper divisors (34590849761).

70046470521 is an equidigital number, since it uses as much as digits as its factorization.

70046470521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864771253 (or 864771244 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 70046470521 in words is "seventy billion, forty-six million, four hundred seventy thousand, five hundred twenty-one".