70506283920 has 80 divisors (see below), whose sum is σ = 222152632512. Its totient is φ = 18493447680.

The previous prime is 70506283891. The next prime is 70506283937. The reversal of 70506283920 is 2938260507.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×70506283920² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2393362 + ... + 2422641.

Almost surely, 2^70506283920 is an apocalyptic number.

It is an amenable number.

70506283920 is an abundant number, since it is smaller than the sum of its proper divisors (151646348592).

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

70506283920 is a wasteful number, since it uses less digits than its factorization.

70506283920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816080 (or 4816074 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 70506283920 in words is "seventy billion, five hundred six million, two hundred eighty-three thousand, nine hundred twenty".