71957653258 has 8 divisors (see below), whose sum is σ = 108317881728. Its totient is φ = 35851692684.

The previous prime is 71957653249. The next prime is 71957653291. The reversal of 71957653258 is 85235675917.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×71957653258⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63566266 + ... + 63567397.

It is an arithmetic number, because the mean of its divisors is an integer number (13539735216).

Almost surely, 2^71957653258 is an apocalyptic number.

71957653258 is a deficient number, since it is larger than the sum of its proper divisors (36360228470).

71957653258 is a wasteful number, since it uses less digits than its factorization.

71957653258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127133948.

The product of its digits is 15876000, while the sum is 58.

The spelling of 71957653258 in words is "seventy-one billion, nine hundred fifty-seven million, six hundred fifty-three thousand, two hundred fifty-eight".