20744753590 has 32 divisors (see below), whose sum is σ = 41682491136. Its totient is φ = 7368113760.

The previous prime is 20744753563. The next prime is 20744753597. The reversal of 20744753590 is 9535744702.

It is a self number, because there is not a number n which added to its sum of digits gives 20744753590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20744753597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188162 + ... + 2197621.

It is an arithmetic number, because the mean of its divisors is an integer number (1302577848).

Almost surely, 2^20744753590 is an apocalyptic number.

20744753590 is an abundant number, since it is smaller than the sum of its proper divisors (20937737546).

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

20744753590 is a wasteful number, since it uses less digits than its factorization.

20744753590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385844.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 20744753590 in words is "twenty billion, seven hundred forty-four million, seven hundred fifty-three thousand, five hundred ninety".