20323712748734 has 32 divisors (see below), whose sum is σ = 31308590914560. Its totient is φ = 9890591622912.

The previous prime is 20323712748707. The next prime is 20323712748763. The reversal of 20323712748734 is 43784721732302.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138760412 + ... + 138906800.

It is an arithmetic number, because the mean of its divisors is an integer number (978393466080).

Almost surely, 2^{20323712748734} is an apocalyptic number.

20323712748734 is a deficient number, since it is larger than the sum of its proper divisors (10984878165826).

20323712748734 is a wasteful number, since it uses less digits than its factorization.

20323712748734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156884.

The product of its (nonzero) digits is 9483264, while the sum is 53.

The spelling of 20323712748734 in words is "twenty trillion, three hundred twenty-three billion, seven hundred twelve million, seven hundred forty-eight thousand, seven hundred thirty-four".