254136425651 has 4 divisors (see below), whose sum is σ = 255964745400. Its totient is φ = 252308105904.

The previous prime is 254136425639. The next prime is 254136425659. The reversal of 254136425651 is 156524631452.

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 254136425651 - 2²² = 254132231347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254136425659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914159666 + ... + 914159943.

It is an arithmetic number, because the mean of its divisors is an integer number (63991186350).

Almost surely, 2^254136425651 is an apocalyptic number.

254136425651 is a deficient number, since it is larger than the sum of its proper divisors (1828319749).

254136425651 is a wasteful number, since it uses less digits than its factorization.

254136425651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828319748.

The product of its digits is 864000, while the sum is 44.

The spelling of 254136425651 in words is "two hundred fifty-four billion, one hundred thirty-six million, four hundred twenty-five thousand, six hundred fifty-one".