731872866961 has 8 divisors (see below), whose sum is σ = 733080952800. Its totient is φ = 730665140352.

The previous prime is 731872866953. The next prime is 731872866973. The reversal of 731872866961 is 169668278137.

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

It is a cyclic number.

It is not a de Polignac number, because 731872866961 - 2³ = 731872866953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731872866893 and 731872866902.

It is not an unprimeable number, because it can be changed into a prime (731872866931) 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, 4152906 + ... + 4325548.

It is an arithmetic number, because the mean of its divisors is an integer number (91635119100).

Almost surely, 2^731872866961 is an apocalyptic number.

It is an amenable number.

731872866961 is a deficient number, since it is larger than the sum of its proper divisors (1208085839).

731872866961 is a wasteful number, since it uses less digits than its factorization.

731872866961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179615.

The product of its digits is 36578304, while the sum is 64.

The spelling of 731872866961 in words is "seven hundred thirty-one billion, eight hundred seventy-two million, eight hundred sixty-six thousand, nine hundred sixty-one".