2638198413 has 12 divisors (see below), whose sum is σ = 3811567968. Its totient is φ = 1758412680.

The previous prime is 2638198399. The next prime is 2638198429. The reversal of 2638198413 is 3148918362.

2638198413 is a `hidden beast` number, since 2 + 638 + 1 + 9 + 8 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 2638198413 - 2¹⁶ = 2638132877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638198513) 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, 14656 + ... + 74102.

It is an arithmetic number, because the mean of its divisors is an integer number (317630664).

Almost surely, 2^2638198413 is an apocalyptic number.

It is an amenable number.

2638198413 is a deficient number, since it is larger than the sum of its proper divisors (1173369555).

2638198413 is a wasteful number, since it uses less digits than its factorization.

2638198413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64384 (or 64381 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2638198413 is about 51363.3956529356. The cubic root of 2638198413 is about 1381.7701873732.

The spelling of 2638198413 in words is "two billion, six hundred thirty-eight million, one hundred ninety-eight thousand, four hundred thirteen".