71699541312 has 56 divisors (see below), whose sum is σ = 216805759936. Its totient is φ = 20485582848.

The previous prime is 71699541301. The next prime is 71699541367. The reversal of 71699541312 is 21314599617.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 26672593 + ... + 26675280.

Almost surely, 2^71699541312 is an apocalyptic number.

It is an amenable number.

71699541312 is an abundant number, since it is smaller than the sum of its proper divisors (145106218624).

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

71699541312 is a wasteful number, since it uses less digits than its factorization.

71699541312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53347895 (or 53347885 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The spelling of 71699541312 in words is "seventy-one billion, six hundred ninety-nine million, five hundred forty-one thousand, three hundred twelve".