18740646193344 has 56 divisors (see below), whose sum is σ = 50212279925760. Its totient is φ = 6167807602944.

The previous prime is 18740646193343. The next prime is 18740646193351. The reversal of 18740646193344 is 44339164604781.

It is not an unprimeable number, because it can be changed into a prime (18740646193343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617754024 + ... + 617784359.

Almost surely, 2^{18740646193344} is an apocalyptic number.

It is an amenable number.

18740646193344 is an abundant number, since it is smaller than the sum of its proper divisors (31471633732416).

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

18740646193344 is a wasteful number, since it uses less digits than its factorization.

18740646193344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235538477 (or 1235538467 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 60.

The spelling of 18740646193344 in words is "eighteen trillion, seven hundred forty billion, six hundred forty-six million, one hundred ninety-three thousand, three hundred forty-four".