249376561100 has 18 divisors (see below), whose sum is σ = 541147137804. Its totient is φ = 99750624400.

The previous prime is 249376561079. The next prime is 249376561201. The reversal of 249376561100 is 1165673942.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1246882706 + ... + 1246882905.

It is an arithmetic number, because the mean of its divisors is an integer number (30063729878).

Almost surely, 2^249376561100 is an apocalyptic number.

249376561100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249376561100 is an abundant number, since it is smaller than the sum of its proper divisors (291770576704).

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

249376561100 is a wasteful number, since it uses less digits than its factorization.

249376561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493765625 (or 2493765618 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 249376561100 in words is "two hundred forty-nine billion, three hundred seventy-six million, five hundred sixty-one thousand, one hundred".