20740768590 has 16 divisors (see below), whose sum is σ = 49777844688. Its totient is φ = 5530871616.

The previous prime is 20740768589. The next prime is 20740768681. The reversal of 20740768590 is 9586704702.

It is a super-3 number, since 3×20740768590³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345679447 + ... + 345679506.

It is an arithmetic number, because the mean of its divisors is an integer number (3111115293).

Almost surely, 2^20740768590 is an apocalyptic number.

20740768590 is an abundant number, since it is smaller than the sum of its proper divisors (29037076098).

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

20740768590 is a wasteful number, since it uses less digits than its factorization.

20740768590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691358963.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 20740768590 in words is "twenty billion, seven hundred forty million, seven hundred sixty-eight thousand, five hundred ninety".