2531764438 has 48 divisors (see below), whose sum is σ = 4625495280. Its totient is φ = 1034908224.

The previous prime is 2531764387. The next prime is 2531764439. The reversal of 2531764438 is 8344671352.

It is a junction number, because it is equal to n+sod(n) for n = 2531764394 and 2531764403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531764439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230520 + ... + 241252.

It is an arithmetic number, because the mean of its divisors is an integer number (96364485).

Almost surely, 2^2531764438 is an apocalyptic number.

2531764438 is a deficient number, since it is larger than the sum of its proper divisors (2093730842).

2531764438 is a wasteful number, since it uses less digits than its factorization.

2531764438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10861 (or 10854 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 2531764438 is about 50316.6417599585. The cubic root of 2531764438 is about 1362.9327638896.

The spelling of 2531764438 in words is "two billion, five hundred thirty-one million, seven hundred sixty-four thousand, four hundred thirty-eight".