20751011742 has 16 divisors (see below), whose sum is σ = 41535002880. Its totient is φ = 6911507352.

The previous prime is 20751011737. The next prime is 20751011753. The reversal of 20751011742 is 24711015702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365958 + ... + 1381065.

It is an arithmetic number, because the mean of its divisors is an integer number (2595937680).

Almost surely, 2^20751011742 is an apocalyptic number.

20751011742 is an abundant number, since it is smaller than the sum of its proper divisors (20783991138).

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

20751011742 is a wasteful number, since it uses less digits than its factorization.

20751011742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748287.

The product of its (nonzero) digits is 3920, while the sum is 30.

The spelling of 20751011742 in words is "twenty billion, seven hundred fifty-one million, eleven thousand, seven hundred forty-two".