2499936780 has 96 divisors (see below), whose sum is σ = 8038114560. Its totient is φ = 574145280.

The previous prime is 2499936779. The next prime is 2499936781. The reversal of 2499936780 is 876399942.

It is an interprime number because it is at equal distance from previous prime (2499936779) and next prime (2499936781).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 2499936780.

It is not an unprimeable number, because it can be changed into a prime (2499936781) 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, 87139 + ... + 112218.

It is an arithmetic number, because the mean of its divisors is an integer number (83730360).

Almost surely, 2^2499936780 is an apocalyptic number.

2499936780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2499936780 is an abundant number, since it is smaller than the sum of its proper divisors (5538177780).

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

2499936780 is a wasteful number, since it uses less digits than its factorization.

2499936780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199399 (or 199397 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 2499936780 is about 49999.3677960032. The cubic root of 2499936780 is about 1357.1973678356.

The spelling of 2499936780 in words is "two billion, four hundred ninety-nine million, nine hundred thirty-six thousand, seven hundred eighty".