20379540107531 has 8 divisors (see below), whose sum is σ = 23198844075264. Its totient is φ = 17721339223720.

The previous prime is 20379540107519. The next prime is 20379540107533. The reversal of 20379540107531 is 13570104597302.

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

It is not a de Polignac number, because 20379540107531 - 2¹⁰ = 20379540106507 is a prime.

It is a super-2 number, since 2×20379540107531² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20379540107533) 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, 40275770711 + ... + 40275771216.

It is an arithmetic number, because the mean of its divisors is an integer number (2899855509408).

Almost surely, 2^{20379540107531} is an apocalyptic number.

20379540107531 is a deficient number, since it is larger than the sum of its proper divisors (2819303967733).

20379540107531 is a wasteful number, since it uses less digits than its factorization.

20379540107531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80551541961.

The product of its (nonzero) digits is 793800, while the sum is 47.

The spelling of 20379540107531 in words is "twenty trillion, three hundred seventy-nine billion, five hundred forty million, one hundred seven thousand, five hundred thirty-one".