31454400725893 has 12 divisors (see below), whose sum is σ = 35172103531360. Its totient is φ = 28046029125312.

The previous prime is 31454400725833. The next prime is 31454400725899. The reversal of 31454400725893 is 39852700445413.

It is a de Polignac number, because none of the positive numbers 2^k-31454400725893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454400725899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2864172321 + ... + 2864183302.

Almost surely, 2^{31454400725893} is an apocalyptic number.

It is an amenable number.

31454400725893 is a deficient number, since it is larger than the sum of its proper divisors (3717702805467).

31454400725893 is a wasteful number, since it uses less digits than its factorization.

31454400725893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728355676 (or 5728355659 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 31454400725893 in words is "thirty-one trillion, four hundred fifty-four billion, four hundred million, seven hundred twenty-five thousand, eight hundred ninety-three".