70638630456 has 64 divisors (see below), whose sum is σ = 179416404000. Its totient is φ = 23171678208.

The previous prime is 70638630427. The next prime is 70638630473. The reversal of 70638630456 is 65403683607.

It is a happy number.

It is a super-2 number, since 2×70638630456² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741750 + ... + 831546.

Almost surely, 2^70638630456 is an apocalyptic number.

It is an amenable number.

70638630456 is an abundant number, since it is smaller than the sum of its proper divisors (108777773544).

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

70638630456 is a wasteful number, since it uses less digits than its factorization.

70638630456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90328 (or 90324 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 70638630456 in words is "seventy billion, six hundred thirty-eight million, six hundred thirty thousand, four hundred fifty-six".