2649089931 has 8 divisors (see below), whose sum is σ = 3534155664. Its totient is φ = 1765042080.

The previous prime is 2649089917. The next prime is 2649089959. The reversal of 2649089931 is 1399809462.

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

It is not a de Polignac number, because 2649089931 - 2⁵ = 2649089899 is a prime.

It is a super-2 number, since 2×2649089931² = 14035354925051169522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2649089981) 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, 248376 + ... + 258821.

It is an arithmetic number, because the mean of its divisors is an integer number (441769458).

Almost surely, 2^2649089931 is an apocalyptic number.

2649089931 is a deficient number, since it is larger than the sum of its proper divisors (885065733).

2649089931 is a wasteful number, since it uses less digits than its factorization.

2649089931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508941.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 2649089931 is about 51469.3105743607. The cubic root of 2649089931 is about 1383.6690731154.

The spelling of 2649089931 in words is "two billion, six hundred forty-nine million, eighty-nine thousand, nine hundred thirty-one".