214256625457 has 24 divisors (see below), whose sum is σ = 260534031360. Its totient is φ = 175474615680.

The previous prime is 214256625449. The next prime is 214256625463. The reversal of 214256625457 is 754526652412.

It is not a de Polignac number, because 214256625457 - 2³ = 214256625449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214256625457.

It is not an unprimeable number, because it can be changed into a prime (214256625437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 772728 + ... + 1012729.

It is an arithmetic number, because the mean of its divisors is an integer number (10855584640).

Almost surely, 2^214256625457 is an apocalyptic number.

It is an amenable number.

214256625457 is a deficient number, since it is larger than the sum of its proper divisors (46277405903).

214256625457 is a wasteful number, since it uses less digits than its factorization.

214256625457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785581 (or 1785574 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 49.

The spelling of 214256625457 in words is "two hundred fourteen billion, two hundred fifty-six million, six hundred twenty-five thousand, four hundred fifty-seven".