912800400731 has 4 divisors (see below), whose sum is σ = 912879903672. Its totient is φ = 912720897792.

The previous prime is 912800400649. The next prime is 912800400749. The reversal of 912800400731 is 137004008219.

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 912800400731 - 2¹⁸ = 912800138587 is a prime.

It is a super-2 number, since 2×912800400731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 912800400691 and 912800400700.

It is not an unprimeable number, because it can be changed into a prime (912800400761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39734246 + ... + 39757211.

It is an arithmetic number, because the mean of its divisors is an integer number (228219975918).

Almost surely, 2^912800400731 is an apocalyptic number.

912800400731 is a deficient number, since it is larger than the sum of its proper divisors (79502941).

912800400731 is a wasteful number, since it uses less digits than its factorization.

912800400731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79502940.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 912800400731 in words is "nine hundred twelve billion, eight hundred million, four hundred thousand, seven hundred thirty-one".