20746735054 has 16 divisors (see below), whose sum is σ = 31613288400. Its totient is φ = 10209253824.

The previous prime is 20746735039. The next prime is 20746735067. The reversal of 20746735054 is 45053764702.

It is a self number, because there is not a number n which added to its sum of digits gives 20746735054.

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, 78802 + ... + 218410.

It is an arithmetic number, because the mean of its divisors is an integer number (1975830525).

Almost surely, 2^20746735054 is an apocalyptic number.

20746735054 is a deficient number, since it is larger than the sum of its proper divisors (10866553346).

20746735054 is a wasteful number, since it uses less digits than its factorization.

20746735054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140787.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 20746735054 in words is "twenty billion, seven hundred forty-six million, seven hundred thirty-five thousand, fifty-four".