71240311692 has 144 divisors (see below), whose sum is σ = 198256007040. Its totient is φ = 21390220800.

The previous prime is 71240311687. The next prime is 71240311771. The reversal of 71240311692 is 29611304217.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38034468 + ... + 38036340.

Almost surely, 2^71240311692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71240311692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99128003520).

71240311692 is an abundant number, since it is smaller than the sum of its proper divisors (127015695348).

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

71240311692 is a wasteful number, since it uses less digits than its factorization.

71240311692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 71240311692 in words is "seventy-one billion, two hundred forty million, three hundred eleven thousand, six hundred ninety-two".