672132407731 has 4 divisors (see below), whose sum is σ = 672154274464. Its totient is φ = 672110541000.

The previous prime is 672132407729. The next prime is 672132407741. The reversal of 672132407731 is 137704231276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672132407731 - 2¹ = 672132407729 is a prime.

It is a super-2 number, since 2×672132407731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672132407711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10887195 + ... + 10948756.

It is an arithmetic number, because the mean of its divisors is an integer number (168038568616).

Almost surely, 2^672132407731 is an apocalyptic number.

672132407731 is a deficient number, since it is larger than the sum of its proper divisors (21866733).

672132407731 is a wasteful number, since it uses less digits than its factorization.

672132407731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21866732.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 672132407731 in words is "six hundred seventy-two billion, one hundred thirty-two million, four hundred seven thousand, seven hundred thirty-one".