70745497440 has 48 divisors (see below), whose sum is σ = 222848318448. Its totient is φ = 18865465856.

The previous prime is 70745497429. The next prime is 70745497457. The reversal of 70745497440 is 4479454707.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73692747 + ... + 73693706.

It is an arithmetic number, because the mean of its divisors is an integer number (4642673301).

Almost surely, 2^70745497440 is an apocalyptic number.

It is an amenable number.

70745497440 is an abundant number, since it is smaller than the sum of its proper divisors (152102821008).

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

70745497440 is a wasteful number, since it uses less digits than its factorization.

70745497440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147386471 (or 147386463 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 51.

The spelling of 70745497440 in words is "seventy billion, seven hundred forty-five million, four hundred ninety-seven thousand, four hundred forty".