2481378636 has 24 divisors (see below), whose sum is σ = 6316236864. Its totient is φ = 751932880.

The previous prime is 2481378607. The next prime is 2481378659. The reversal of 2481378636 is 6368731842.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9399030 + ... + 9399293.

It is an arithmetic number, because the mean of its divisors is an integer number (263176536).

Almost surely, 2^2481378636 is an apocalyptic number.

It is an amenable number.

2481378636 is an abundant number, since it is smaller than the sum of its proper divisors (3834858228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2481378636 is a wasteful number, since it uses less digits than its factorization.

2481378636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798341 (or 18798339 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 2481378636 is about 49813.4383073483. The cubic root of 2481378636 is about 1353.8306630403.

The spelling of 2481378636 in words is "two billion, four hundred eighty-one million, three hundred seventy-eight thousand, six hundred thirty-six".