70445618272 has 24 divisors (see below), whose sum is σ = 138704992272. Its totient is φ = 35218953600.

The previous prime is 70445618267. The next prime is 70445618339. The reversal of 70445618272 is 27281654407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188622 + ... + 420082.

It is an arithmetic number, because the mean of its divisors is an integer number (5779374678).

Almost surely, 2^70445618272 is an apocalyptic number.

It is an amenable number.

70445618272 is a deficient number, since it is larger than the sum of its proper divisors (68259374000).

70445618272 is a wasteful number, since it uses less digits than its factorization.

70445618272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240982 (or 240974 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 70445618272 in words is "seventy billion, four hundred forty-five million, six hundred eighteen thousand, two hundred seventy-two".