20373840028 has 12 divisors (see below), whose sum is σ = 36326941560. Its totient is φ = 9994713872.

The previous prime is 20373840023. The next prime is 20373840029. The reversal of 20373840028 is 82004837302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20373840023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48051298 + ... + 48051721.

It is an arithmetic number, because the mean of its divisors is an integer number (3027245130).

Almost surely, 2^20373840028 is an apocalyptic number.

It is an amenable number.

20373840028 is a deficient number, since it is larger than the sum of its proper divisors (15953101532).

20373840028 is a wasteful number, since it uses less digits than its factorization.

20373840028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96103076 (or 96103074 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 20373840028 in words is "twenty billion, three hundred seventy-three million, eight hundred forty thousand, twenty-eight".