71730660472131 has 8 divisors (see below), whose sum is σ = 95641909387024. Its totient is φ = 47819925936000.

The previous prime is 71730660472117. The next prime is 71730660472193. The reversal of 71730660472131 is 13127406603717.

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

It is not a de Polignac number, because 71730660472131 - 2⁹ = 71730660471619 is a prime.

It is a super-2 number, since 2×71730660472131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71730660472931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128269186 + ... + 128827191.

It is an arithmetic number, because the mean of its divisors is an integer number (11955238673378).

Almost surely, 2^{71730660472131} is an apocalyptic number.

71730660472131 is a deficient number, since it is larger than the sum of its proper divisors (23911248914893).

71730660472131 is a wasteful number, since it uses less digits than its factorization.

71730660472131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257189381.

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 71730660472131 in words is "seventy-one trillion, seven hundred thirty billion, six hundred sixty million, four hundred seventy-two thousand, one hundred thirty-one".