20793877934 has 4 divisors (see below), whose sum is σ = 31190816904. Its totient is φ = 10396938966.

The previous prime is 20793877933. The next prime is 20793877957. The reversal of 20793877934 is 43977839702.

20793877934 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20793877933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5198469482 + ... + 5198469485.

It is an arithmetic number, because the mean of its divisors is an integer number (7797704226).

Almost surely, 2^20793877934 is an apocalyptic number.

20793877934 is a deficient number, since it is larger than the sum of its proper divisors (10396938970).

20793877934 is a wasteful number, since it uses less digits than its factorization.

20793877934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396938969.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 20793877934 in words is "twenty billion, seven hundred ninety-three million, eight hundred seventy-seven thousand, nine hundred thirty-four".