20354375790 has 160 divisors (see below), whose sum is σ = 64075644864. Its totient is φ = 4538903040.

The previous prime is 20354375771. The next prime is 20354375807. The reversal of 20354375790 is 9757345302.

20354375790 is a `hidden beast` number, since 2 + 0 + 35 + 43 + 7 + 579 + 0 = 666.

It is a super-2 number, since 2×20354375790² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 188692 + ... + 276248.

Almost surely, 2^20354375790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20354375790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32037822432).

20354375790 is an abundant number, since it is smaller than the sum of its proper divisors (43721269074).

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

20354375790 is a wasteful number, since it uses less digits than its factorization.

20354375790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87624 (or 87615 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 20354375790 in words is "twenty billion, three hundred fifty-four million, three hundred seventy-five thousand, seven hundred ninety".