71315640235 has 32 divisors (see below), whose sum is σ = 99496350720. Its totient is φ = 48056706432.

The previous prime is 71315640191. The next prime is 71315640241. The reversal of 71315640235 is 53204651317.

It is not a de Polignac number, because 71315640235 - 2⁷ = 71315640107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71315640194 and 71315640203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10232722 + ... + 10239688.

It is an arithmetic number, because the mean of its divisors is an integer number (3109260960).

Almost surely, 2^71315640235 is an apocalyptic number.

71315640235 is a deficient number, since it is larger than the sum of its proper divisors (28180710485).

71315640235 is a wasteful number, since it uses less digits than its factorization.

71315640235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11995.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 71315640235 in words is "seventy-one billion, three hundred fifteen million, six hundred forty thousand, two hundred thirty-five".