70387445156 has 12 divisors (see below), whose sum is σ = 140774890368. Its totient is φ = 30166047912.

The previous prime is 70387445131. The next prime is 70387445173. The reversal of 70387445156 is 65154478307.

70387445156 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 1256918636 + ... + 1256918691.

It is an arithmetic number, because the mean of its divisors is an integer number (11731240864).

Almost surely, 2^70387445156 is an apocalyptic number.

It is an amenable number.

70387445156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70387445156 is a wasteful number, since it uses less digits than its factorization.

70387445156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513837338 (or 2513837336 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 70387445156 in words is "seventy billion, three hundred eighty-seven million, four hundred forty-five thousand, one hundred fifty-six".