102140679745 has 32 divisors (see below), whose sum is σ = 136586257920. Its totient is φ = 72806065920.

The previous prime is 102140679727. The next prime is 102140679749. The reversal of 102140679745 is 547976041201.

It is not a de Polignac number, because 102140679745 - 2¹¹ = 102140677697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102140679695 and 102140679704.

It is not an unprimeable number, because it can be changed into a prime (102140679749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12110680 + ... + 12119110.

It is an arithmetic number, because the mean of its divisors is an integer number (4268320560).

Almost surely, 2^102140679745 is an apocalyptic number.

It is an amenable number.

102140679745 is a deficient number, since it is larger than the sum of its proper divisors (34445578175).

102140679745 is a wasteful number, since it uses less digits than its factorization.

102140679745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14905.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 102140679745 in words is "one hundred two billion, one hundred forty million, six hundred seventy-nine thousand, seven hundred forty-five".