2455954278239 has 32 divisors (see below), whose sum is σ = 3269402763264. Its totient is φ = 1787954525280.

The previous prime is 2455954278233. The next prime is 2455954278247. The reversal of 2455954278239 is 9328724595542.

It is not a de Polignac number, because 2455954278239 - 2⁸ = 2455954277983 is a prime.

It is a super-2 number, since 2×2455954278239² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455954278233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16048979 + ... + 16201284.

It is an arithmetic number, because the mean of its divisors is an integer number (102168836352).

Almost surely, 2^{2455954278239} is an apocalyptic number.

2455954278239 is a deficient number, since it is larger than the sum of its proper divisors (813448485025).

2455954278239 is a wasteful number, since it uses less digits than its factorization.

2455954278239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32250347.

The product of its digits is 217728000, while the sum is 65.

The spelling of 2455954278239 in words is "two trillion, four hundred fifty-five billion, nine hundred fifty-four million, two hundred seventy-eight thousand, two hundred thirty-nine".