20023732746 has 24 divisors (see below), whose sum is σ = 43387924320. Its totient is φ = 6674089896.

The previous prime is 20023732717. The next prime is 20023732777. The reversal of 20023732746 is 64723732002.

20023732746 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 20023732746.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281611 + ... + 345473.

It is an arithmetic number, because the mean of its divisors is an integer number (1807830180).

Almost surely, 2^20023732746 is an apocalyptic number.

20023732746 is an abundant number, since it is smaller than the sum of its proper divisors (23364191574).

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

20023732746 is a wasteful number, since it uses less digits than its factorization.

20023732746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81290 (or 81287 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 20023732746 in words is "twenty billion, twenty-three million, seven hundred thirty-two thousand, seven hundred forty-six".