70918448431440 has 160 divisors (see below), whose sum is σ = 219975170688000. Its totient is φ = 18900580589568.

The previous prime is 70918448431421. The next prime is 70918448431469. The reversal of 70918448431440 is 4413484481907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3908851009 + ... + 3908869151.

It is an arithmetic number, because the mean of its divisors is an integer number (1374844816800).

Almost surely, 2^{70918448431440} is an apocalyptic number.

It is an amenable number.

70918448431440 is an abundant number, since it is smaller than the sum of its proper divisors (149056722256560).

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

70918448431440 is a wasteful number, since it uses less digits than its factorization.

70918448431440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26741 (or 26735 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 70918448431440 in words is "seventy trillion, nine hundred eighteen billion, four hundred forty-eight million, four hundred thirty-one thousand, four hundred forty".