2541863631 has 32 divisors (see below), whose sum is σ = 3558400000. Its totient is φ = 1612016640.

The previous prime is 2541863603. The next prime is 2541863641. The reversal of 2541863631 is 1363681452.

2541863631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2541863631 - 2¹⁸ = 2541601487 is a prime.

It is a super-2 number, since 2×2541863631² = 12922141437201008322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2541863631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541863641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2034495 + ... + 2035743.

It is an arithmetic number, because the mean of its divisors is an integer number (111200000).

Almost surely, 2^2541863631 is an apocalyptic number.

2541863631 is a deficient number, since it is larger than the sum of its proper divisors (1016536369).

2541863631 is a wasteful number, since it uses less digits than its factorization.

2541863631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its digits is 103680, while the sum is 39.

The square root of 2541863631 is about 50416.8982683386. The cubic root of 2541863631 is about 1364.7426030512.

The spelling of 2541863631 in words is "two billion, five hundred forty-one million, eight hundred sixty-three thousand, six hundred thirty-one".