2149918318372 has 24 divisors (see below), whose sum is σ = 4106306740032. Its totient is φ = 976779117600.

The previous prime is 2149918318367. The next prime is 2149918318393. The reversal of 2149918318372 is 2738138199412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11316768 + ... + 11505175.

It is an arithmetic number, because the mean of its divisors is an integer number (171096114168).

Almost surely, 2^{2149918318372} is an apocalyptic number.

2149918318372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2149918318372 is a deficient number, since it is larger than the sum of its proper divisors (1956388421660).

2149918318372 is a wasteful number, since it uses less digits than its factorization.

2149918318372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22824099 (or 22824097 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The spelling of 2149918318372 in words is "two trillion, one hundred forty-nine billion, nine hundred eighteen million, three hundred eighteen thousand, three hundred seventy-two".