71290918998 has 24 divisors (see below), whose sum is σ = 166345478208. Its totient is φ = 21935667312.

The previous prime is 71290918991. The next prime is 71290919009. The reversal of 71290918998 is 89981909217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71290918991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152330790 + ... + 152331257.

It is an arithmetic number, because the mean of its divisors is an integer number (6931061592).

Almost surely, 2^71290918998 is an apocalyptic number.

71290918998 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

71290918998 is an abundant number, since it is smaller than the sum of its proper divisors (95054559210).

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

71290918998 is a wasteful number, since it uses less digits than its factorization.

71290918998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304662068 (or 304662065 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 63.

The spelling of 71290918998 in words is "seventy-one billion, two hundred ninety million, nine hundred eighteen thousand, nine hundred ninety-eight".