71272707912 has 48 divisors (see below), whose sum is σ = 220606002240. Its totient is φ = 20363630688.

The previous prime is 71272707887. The next prime is 71272707917. The reversal of 71272707912 is 21970727217.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71272707917) 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, 70706548 + ... + 70707555.

It is an arithmetic number, because the mean of its divisors is an integer number (4595958380).

Almost surely, 2^71272707912 is an apocalyptic number.

71272707912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71272707912 is an abundant number, since it is smaller than the sum of its proper divisors (149333294328).

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

71272707912 is a wasteful number, since it uses less digits than its factorization.

71272707912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141414122 (or 141414115 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 45.

The spelling of 71272707912 in words is "seventy-one billion, two hundred seventy-two million, seven hundred seven thousand, nine hundred twelve".