2539451679 has 8 divisors (see below), whose sum is σ = 3386249472. Its totient is φ = 1692810840.

The previous prime is 2539451647. The next prime is 2539451683. The reversal of 2539451679 is 9761549352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2539451679 - 2⁵ = 2539451647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539451609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5952 + ... + 71514.

It is an arithmetic number, because the mean of its divisors is an integer number (423281184).

Almost surely, 2^2539451679 is an apocalyptic number.

2539451679 is a deficient number, since it is larger than the sum of its proper divisors (846797793).

2539451679 is a wasteful number, since it uses less digits than its factorization.

2539451679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78477.

The product of its digits is 2041200, while the sum is 51.

The square root of 2539451679 is about 50392.9725160166. The cubic root of 2539451679 is about 1364.3108023686.

The spelling of 2539451679 in words is "two billion, five hundred thirty-nine million, four hundred fifty-one thousand, six hundred seventy-nine".