20180445379 has 8 divisors (see below), whose sum is σ = 20848499712. Its totient is φ = 19513458120.

The previous prime is 20180445371. The next prime is 20180445401. The reversal of 20180445379 is 97354408102.

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 20180445379 - 2³ = 20180445371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20180445371) 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, 228229 + ... + 304054.

It is an arithmetic number, because the mean of its divisors is an integer number (2606062464).

Almost surely, 2^20180445379 is an apocalyptic number.

20180445379 is a deficient number, since it is larger than the sum of its proper divisors (668054333).

20180445379 is a wasteful number, since it uses less digits than its factorization.

20180445379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533537.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20180445379 in words is "twenty billion, one hundred eighty million, four hundred forty-five thousand, three hundred seventy-nine".