20374077845 has 16 divisors (see below), whose sum is σ = 26688294720. Its totient is φ = 14808192000.

The previous prime is 20374077817. The next prime is 20374077851. The reversal of 20374077845 is 54877047302.

It is not a de Polignac number, because 20374077845 - 2⁶ = 20374077781 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20374077845.

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, 27635 + ... + 203744.

It is an arithmetic number, because the mean of its divisors is an integer number (1668018420).

Almost surely, 2^20374077845 is an apocalyptic number.

It is an amenable number.

20374077845 is a deficient number, since it is larger than the sum of its proper divisors (6314216875).

20374077845 is a wasteful number, since it uses less digits than its factorization.

20374077845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232996.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 20374077845 in words is "twenty billion, three hundred seventy-four million, seventy-seven thousand, eight hundred forty-five".