71299250712 has 48 divisors (see below), whose sum is σ = 198321121440. Its totient is φ = 23124080448.

The previous prime is 71299250677. The next prime is 71299250723. The reversal of 71299250712 is 21705299217.

71299250712 is a `hidden beast` number, since 7 + 129 + 9 + 2 + 507 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13379328 + ... + 13384655.

It is an arithmetic number, because the mean of its divisors is an integer number (4131690030).

Almost surely, 2^71299250712 is an apocalyptic number.

71299250712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71299250712 is an abundant number, since it is smaller than the sum of its proper divisors (127021870728).

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

71299250712 is a wasteful number, since it uses less digits than its factorization.

71299250712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26764032 (or 26764025 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 71299250712 in words is "seventy-one billion, two hundred ninety-nine million, two hundred fifty thousand, seven hundred twelve".