71540831001 has 12 divisors (see below), whose sum is σ = 98035505232. Its totient is φ = 46404860688.

The previous prime is 71540830993. The next prime is 71540831041. The reversal of 71540831001 is 10013804517.

It is not a de Polignac number, because 71540831001 - 2³ = 71540830993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71540831001.

It is not an unprimeable number, because it can be changed into a prime (71540831041) 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, 8705515 + ... + 8713728.

It is an arithmetic number, because the mean of its divisors is an integer number (8169625436).

Almost surely, 2^71540831001 is an apocalyptic number.

It is an amenable number.

71540831001 is a deficient number, since it is larger than the sum of its proper divisors (26494674231).

71540831001 is a wasteful number, since it uses less digits than its factorization.

71540831001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17419320 (or 17419283 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 71540831001 in words is "seventy-one billion, five hundred forty million, eight hundred thirty-one thousand, one".