214878964572731 has 2 divisors, whose sum is σ = 214878964572732. Its totient is φ = 214878964572730.

The previous prime is 214878964572719. The next prime is 214878964572749. The reversal of 214878964572731 is 137275469878412.

214878964572731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214878964572731 is a prime.

It is a super-2 number, since 2×214878964572731² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (214878964572761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107439482286365 + 107439482286366.

It is an arithmetic number, because the mean of its divisors is an integer number (107439482286366).

Almost surely, 2^{214878964572731} is an apocalyptic number.

214878964572731 is a deficient number, since it is larger than the sum of its proper divisors (1).

214878964572731 is an equidigital number, since it uses as much as digits as its factorization.

214878964572731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1137991680, while the sum is 74.

The spelling of 214878964572731 in words is "two hundred fourteen trillion, eight hundred seventy-eight billion, nine hundred sixty-four million, five hundred seventy-two thousand, seven hundred thirty-one".