102018751873 has 4 divisors (see below), whose sum is σ = 102097898820. Its totient is φ = 101939604928.

The previous prime is 102018751847. The next prime is 102018751987. The reversal of 102018751873 is 378157810201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50939135809 + 51079616064 = 225697^2 + 226008^2 .

It is a cyclic number.

It is not a de Polignac number, because 102018751873 - 2⁵ = 102018751841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102018751073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39571540 + ... + 39574117.

It is an arithmetic number, because the mean of its divisors is an integer number (25524474705).

Almost surely, 2^102018751873 is an apocalyptic number.

It is an amenable number.

102018751873 is a deficient number, since it is larger than the sum of its proper divisors (79146947).

102018751873 is an equidigital number, since it uses as much as digits as its factorization.

102018751873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79146946.

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 102018751873 in words is "one hundred two billion, eighteen million, seven hundred fifty-one thousand, eight hundred seventy-three".