2638044801 has 48 divisors (see below), whose sum is σ = 4614300480. Its totient is φ = 1484904960.

The previous prime is 2638044791. The next prime is 2638044821. The reversal of 2638044801 is 1084408362.

It is not a de Polignac number, because 2638044801 - 2²¹ = 2635947649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2638044821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73761 + ... + 103521.

It is an arithmetic number, because the mean of its divisors is an integer number (96131260).

Almost surely, 2^2638044801 is an apocalyptic number.

2638044801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2638044801 is a deficient number, since it is larger than the sum of its proper divisors (1976255679).

2638044801 is a wasteful number, since it uses less digits than its factorization.

2638044801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29851 (or 29838 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 2638044801 is about 51361.9002861070. The cubic root of 2638044801 is about 1381.7433684905.

The spelling of 2638044801 in words is "two billion, six hundred thirty-eight million, forty-four thousand, eight hundred one".