999977648130 has 32 divisors (see below), whose sum is σ = 2666607062400. Its totient is φ = 266660706096.

The previous prime is 999977648129. The next prime is 999977648207. The reversal of 999977648130 is 31846779999.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851810190 + ... + 1851810729.

It is an arithmetic number, because the mean of its divisors is an integer number (83331470700).

Almost surely, 2^999977648130 is an apocalyptic number.

999977648130 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

999977648130 is an abundant number, since it is smaller than the sum of its proper divisors (1666629414270).

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

999977648130 is a wasteful number, since it uses less digits than its factorization.

999977648130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703620935 (or 3703620929 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 999977648130 in words is "nine hundred ninety-nine billion, nine hundred seventy-seven million, six hundred forty-eight thousand, one hundred thirty".