70389731418 has 16 divisors (see below), whose sum is σ = 140807252640. Its totient is φ = 23458612176.

The previous prime is 70389731413. The next prime is 70389731443. The reversal of 70389731418 is 81413798307.

It is not an unprimeable number, because it can be changed into a prime (70389731411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1124908 + ... + 1185831.

It is an arithmetic number, because the mean of its divisors is an integer number (8800453290).

Almost surely, 2^70389731418 is an apocalyptic number.

70389731418 is an abundant number, since it is smaller than the sum of its proper divisors (70417521222).

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

70389731418 is a wasteful number, since it uses less digits than its factorization.

70389731418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315821.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 70389731418 in words is "seventy billion, three hundred eighty-nine million, seven hundred thirty-one thousand, four hundred eighteen".