218369079408 has 40 divisors (see below), whose sum is σ = 564137459856. Its totient is φ = 72787456000.

The previous prime is 218369079391. The next prime is 218369079413. The reversal of 218369079408 is 804970963812.

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, 2428858 + ... + 2517158.

Almost surely, 2^218369079408 is an apocalyptic number.

It is an amenable number.

218369079408 is an abundant number, since it is smaller than the sum of its proper divisors (345768380448).

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

218369079408 is a wasteful number, since it uses less digits than its factorization.

218369079408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139833 (or 139827 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 218369079408 in words is "two hundred eighteen billion, three hundred sixty-nine million, seventy-nine thousand, four hundred eight".