254136425715 has 12 divisors (see below), whose sum is σ = 440503137984. Its totient is φ = 135539427024.

The previous prime is 254136425677. The next prime is 254136425771. The reversal of 254136425715 is 517524631452.

254136425715 is a `hidden beast` number, since 2 + 5 + 4 + 1 + 36 + 42 + 571 + 5 = 666.

It is not a de Polignac number, because 254136425715 - 2¹³ = 254136417523 is a prime.

It is a super-2 number, since 2×254136425715² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5647476127 = 254136425715 / (2 + 5 + 4 + 1 + 3 + 6 + 4 + 2 + 5 + 7 + 1 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2823738019 + ... + 2823738108.

It is an arithmetic number, because the mean of its divisors is an integer number (36708594832).

Almost surely, 2^254136425715 is an apocalyptic number.

254136425715 is a deficient number, since it is larger than the sum of its proper divisors (186366712269).

254136425715 is a wasteful number, since it uses less digits than its factorization.

254136425715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5647476138 (or 5647476135 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 254136425715 in words is "two hundred fifty-four billion, one hundred thirty-six million, four hundred twenty-five thousand, seven hundred fifteen".