70637770625 has 20 divisors (see below), whose sum is σ = 89934452388. Its totient is φ = 55443960000.

The previous prime is 70637770607. The next prime is 70637770633. The reversal of 70637770625 is 52607773607.

It can be written as a sum of positive squares in 10 ways, for example, as 40888075264 + 29749695361 = 202208^2 + 172481^2 .

It is not a de Polignac number, because 70637770625 - 2¹⁸ = 70637508481 is a prime.

It is a super-2 number, since 2×70637770625² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1033106 + ... + 1099355.

Almost surely, 2^70637770625 is an apocalyptic number.

It is an amenable number.

70637770625 is a deficient number, since it is larger than the sum of its proper divisors (19296681763).

70637770625 is an equidigital number, since it uses as much as digits as its factorization.

70637770625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132534 (or 2132519 counting only the distinct ones).

The product of its (nonzero) digits is 2593080, while the sum is 50.

The spelling of 70637770625 in words is "seventy billion, six hundred thirty-seven million, seven hundred seventy thousand, six hundred twenty-five".