2649318939879 has 32 divisors (see below), whose sum is σ = 3823090037760. Its totient is φ = 1626418828800.

The previous prime is 2649318939851. The next prime is 2649318939881. The reversal of 2649318939879 is 9789398139462.

It is not a de Polignac number, because 2649318939879 - 2⁸ = 2649318939623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649318939829) 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, 1458262 + ... + 2724915.

It is an arithmetic number, because the mean of its divisors is an integer number (119471563680).

Almost surely, 2^{2649318939879} is an apocalyptic number.

2649318939879 is a deficient number, since it is larger than the sum of its proper divisors (1173771097881).

2649318939879 is a wasteful number, since it uses less digits than its factorization.

2649318939879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183511.

The product of its digits is 1269789696, while the sum is 78.

The spelling of 2649318939879 in words is "two trillion, six hundred forty-nine billion, three hundred eighteen million, nine hundred thirty-nine thousand, eight hundred seventy-nine".