1338600938921 has 8 divisors (see below), whose sum is σ = 1357564515264. Its totient is φ = 1319640419440.

The previous prime is 1338600938911. The next prime is 1338600938923. The reversal of 1338600938921 is 1298390068331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338600938921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338600938923) 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, 125066 + ... + 1640988.

It is an arithmetic number, because the mean of its divisors is an integer number (169695564408).

Almost surely, 2^{1338600938921} is an apocalyptic number.

It is an amenable number.

1338600938921 is a deficient number, since it is larger than the sum of its proper divisors (18963576343).

1338600938921 is a wasteful number, since it uses less digits than its factorization.

1338600938921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528431.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 1338600938921 in words is "one trillion, three hundred thirty-eight billion, six hundred million, nine hundred thirty-eight thousand, nine hundred twenty-one".