2634476391 has 12 divisors (see below), whose sum is σ = 3818346168. Its totient is φ = 1750321584.

The previous prime is 2634476387. The next prime is 2634476413. The reversal of 2634476391 is 1936744362.

2634476391 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 4 + 7 + 639 + 1 = 666.

It is not a de Polignac number, because 2634476391 - 2² = 2634476387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634476311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496885 + ... + 502158.

It is an arithmetic number, because the mean of its divisors is an integer number (318195514).

Almost surely, 2^2634476391 is an apocalyptic number.

2634476391 is a deficient number, since it is larger than the sum of its proper divisors (1183869777).

2634476391 is a wasteful number, since it uses less digits than its factorization.

2634476391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999342 (or 999339 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 2634476391 is about 51327.1506222584. The cubic root of 2634476391 is about 1381.1200720630.

The spelling of 2634476391 in words is "two billion, six hundred thirty-four million, four hundred seventy-six thousand, three hundred ninety-one".