18879354751 has 4 divisors (see below), whose sum is σ = 18883542592. Its totient is φ = 18875166912.

The previous prime is 18879354749. The next prime is 18879354761. The reversal of 18879354751 is 15745397881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15745397881 = 757 ⋅20799733.

It is a cyclic number.

It is not a de Polignac number, because 18879354751 - 2¹ = 18879354749 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 (18879354761) 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, 2087151 + ... + 2096176.

It is an arithmetic number, because the mean of its divisors is an integer number (4720885648).

Almost surely, 2^18879354751 is an apocalyptic number.

18879354751 is a deficient number, since it is larger than the sum of its proper divisors (4187841).

18879354751 is an equidigital number, since it uses as much as digits as its factorization.

18879354751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187840.

The product of its digits is 8467200, while the sum is 58.

The spelling of 18879354751 in words is "eighteen billion, eight hundred seventy-nine million, three hundred fifty-four thousand, seven hundred fifty-one".