254640631701 has 4 divisors (see below), whose sum is σ = 339520842272. Its totient is φ = 169760421132.

The previous prime is 254640631691. The next prime is 254640631727. The reversal of 254640631701 is 107136046452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 254640631701 - 2⁷ = 254640631573 is a prime.

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 254640631701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254640631771) 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, 42440105281 + ... + 42440105286.

It is an arithmetic number, because the mean of its divisors is an integer number (84880210568).

Almost surely, 2^254640631701 is an apocalyptic number.

It is an amenable number.

254640631701 is a deficient number, since it is larger than the sum of its proper divisors (84880210571).

254640631701 is an equidigital number, since it uses as much as digits as its factorization.

254640631701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84880210570.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 254640631701 in words is "two hundred fifty-four billion, six hundred forty million, six hundred thirty-one thousand, seven hundred one".