102023780157889 has 16 divisors (see below), whose sum is σ = 108059684947200. Its totient is φ = 95991712637184.

The previous prime is 102023780157847. The next prime is 102023780157917. The reversal of 102023780157889 is 988751087320201.

It is a cyclic number.

It is not a de Polignac number, because 102023780157889 - 2³⁵ = 101989420419521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102023780557889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291580607 + ... + 1291659595.

It is an arithmetic number, because the mean of its divisors is an integer number (6753730309200).

Almost surely, 2^{102023780157889} is an apocalyptic number.

It is an amenable number.

102023780157889 is a deficient number, since it is larger than the sum of its proper divisors (6035904789311).

102023780157889 is a wasteful number, since it uses less digits than its factorization.

102023780157889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102312.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 102023780157889 in words is "one hundred two trillion, twenty-three billion, seven hundred eighty million, one hundred fifty-seven thousand, eight hundred eighty-nine".