53789978923 has 4 divisors (see below), whose sum is σ = 53828429200. Its totient is φ = 53751528648.

The previous prime is 53789978917. The next prime is 53789978947. The reversal of 53789978923 is 32987998735.

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

It is a cyclic number.

It is not a de Polignac number, because 53789978923 - 2²⁹ = 53253108011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53789978993) 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, 19223040 + ... + 19225837.

It is an arithmetic number, because the mean of its divisors is an integer number (13457107300).

Almost surely, 2^53789978923 is an apocalyptic number.

53789978923 is a deficient number, since it is larger than the sum of its proper divisors (38450277).

53789978923 is a wasteful number, since it uses less digits than its factorization.

53789978923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38450276.

The product of its digits is 205752960, while the sum is 70.

The spelling of 53789978923 in words is "fifty-three billion, seven hundred eighty-nine million, nine hundred seventy-eight thousand, nine hundred twenty-three".