20137383774 has 12 divisors (see below), whose sum is σ = 43630998216. Its totient is φ = 6712461252.

The previous prime is 20137383709. The next prime is 20137383781. The reversal of 20137383774 is 47738373102.

20137383774 is a `hidden beast` number, since 201 + 3 + 73 + 8 + 377 + 4 = 666.

It is a super-2 number, since 2×20137383774² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559371754 + ... + 559371789.

It is an arithmetic number, because the mean of its divisors is an integer number (3635916518).

Almost surely, 2^20137383774 is an apocalyptic number.

20137383774 is an abundant number, since it is smaller than the sum of its proper divisors (23493614442).

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

20137383774 is a wasteful number, since it uses less digits than its factorization.

20137383774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118743551 (or 1118743548 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 20137383774 in words is "twenty billion, one hundred thirty-seven million, three hundred eighty-three thousand, seven hundred seventy-four".