20270053879 has 4 divisors (see below), whose sum is σ = 21336898840. Its totient is φ = 19203208920.

The previous prime is 20270053877. The next prime is 20270053889. The reversal of 20270053879 is 97835007202.

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 20270053879 - 2¹ = 20270053877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270053871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533422452 + ... + 533422489.

It is an arithmetic number, because the mean of its divisors is an integer number (5334224710).

Almost surely, 2^20270053879 is an apocalyptic number.

20270053879 is a deficient number, since it is larger than the sum of its proper divisors (1066844961).

20270053879 is a wasteful number, since it uses less digits than its factorization.

20270053879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066844960.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 20270053879 in words is "twenty billion, two hundred seventy million, fifty-three thousand, eight hundred seventy-nine".