2576948976949 has 4 divisors (see below), whose sum is σ = 2577065936364. Its totient is φ = 2576832017536.

The previous prime is 2576948976893. The next prime is 2576948976961. The reversal of 2576948976949 is 9496798496752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 930487885924 + 1646461091025 = 964618^2 + 1283145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2576948976949 - 2²⁷ = 2576814759221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2576948976149) 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, 58446652 + ... + 58490725.

It is an arithmetic number, because the mean of its divisors is an integer number (644266484091).

Almost surely, 2^{2576948976949} is an apocalyptic number.

It is an amenable number.

2576948976949 is a deficient number, since it is larger than the sum of its proper divisors (116959415).

2576948976949 is a wasteful number, since it uses less digits than its factorization.

2576948976949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116959414.

The product of its digits is 14814213120, while the sum is 85.

The spelling of 2576948976949 in words is "two trillion, five hundred seventy-six billion, nine hundred forty-eight million, nine hundred seventy-six thousand, nine hundred forty-nine".