70287905456 has 20 divisors (see below), whose sum is σ = 137531164704. Its totient is φ = 34795992000.

The previous prime is 70287905449. The next prime is 70287905461. The reversal of 70287905456 is 65450978207.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70287905398 and 70287905407.

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 3 ways as a sum of consecutive naturals, for example, 21745880 + ... + 21749111.

Almost surely, 2^70287905456 is an apocalyptic number.

It is an amenable number.

70287905456 is a deficient number, since it is larger than the sum of its proper divisors (67243259248).

70287905456 is a wasteful number, since it uses less digits than its factorization.

70287905456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43495100 (or 43495094 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 70287905456 in words is "seventy billion, two hundred eighty-seven million, nine hundred five thousand, four hundred fifty-six".