254616616451 has 4 divisors (see below), whose sum is σ = 257477477400. Its totient is φ = 251755755504.

The previous prime is 254616616421. The next prime is 254616616489. The reversal of 254616616451 is 154616616452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254616616451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254616616396 and 254616616405.

It is not an unprimeable number, because it can be changed into a prime (254616616421) 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, 1430430341 + ... + 1430430518.

It is an arithmetic number, because the mean of its divisors is an integer number (64369369350).

Almost surely, 2^254616616451 is an apocalyptic number.

254616616451 is a deficient number, since it is larger than the sum of its proper divisors (2860860949).

254616616451 is an equidigital number, since it uses as much as digits as its factorization.

254616616451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860860948.

The product of its digits is 1036800, while the sum is 47.

Subtracting from 254616616451 its reverse (154616616452), we obtain a palindrome (99999999999).

The spelling of 254616616451 in words is "two hundred fifty-four billion, six hundred sixteen million, six hundred sixteen thousand, four hundred fifty-one".