2179318021901 has 8 divisors (see below), whose sum is σ = 2194010649600. Its totient is φ = 2164626278928.

The previous prime is 2179318021873. The next prime is 2179318021919. The reversal of 2179318021901 is 1091208139712.

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

It is a cyclic number.

It is not a de Polignac number, because 2179318021901 - 2²² = 2179313827597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179318021931) 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, 5161940 + ... + 5568146.

It is an arithmetic number, because the mean of its divisors is an integer number (274251331200).

Almost surely, 2^{2179318021901} is an apocalyptic number.

It is an amenable number.

2179318021901 is a deficient number, since it is larger than the sum of its proper divisors (14692627699).

2179318021901 is a wasteful number, since it uses less digits than its factorization.

2179318021901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442363.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 2179318021901 in words is "two trillion, one hundred seventy-nine billion, three hundred eighteen million, twenty-one thousand, nine hundred one".