71492713838 has 32 divisors (see below), whose sum is σ = 132301693440. Its totient is φ = 28215300960.

The previous prime is 71492713823. The next prime is 71492713843. The reversal of 71492713838 is 83831729417.

It is a super-2 number, since 2×71492713838² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71492713838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392498 + ... + 545013.

It is an arithmetic number, because the mean of its divisors is an integer number (4134427920).

Almost surely, 2^71492713838 is an apocalyptic number.

71492713838 is a deficient number, since it is larger than the sum of its proper divisors (60808979602).

71492713838 is a wasteful number, since it uses less digits than its factorization.

71492713838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937952.

The product of its digits is 2032128, while the sum is 53.

The spelling of 71492713838 in words is "seventy-one billion, four hundred ninety-two million, seven hundred thirteen thousand, eight hundred thirty-eight".