71839098808 has 64 divisors (see below), whose sum is σ = 138865933440. Its totient is φ = 34823798784.

The previous prime is 71839098769. The next prime is 71839098823. The reversal of 71839098808 is 80889093817.

It is a super-2 number, since 2×71839098808² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

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, 29721216 + ... + 29723632.

It is an arithmetic number, because the mean of its divisors is an integer number (2169780210).

Almost surely, 2^71839098808 is an apocalyptic number.

It is an amenable number.

71839098808 is a deficient number, since it is larger than the sum of its proper divisors (67026834632).

71839098808 is a wasteful number, since it uses less digits than its factorization.

71839098808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 61.

The spelling of 71839098808 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-eight thousand, eight hundred eight".