102143882979 has 64 divisors (see below), whose sum is σ = 163344384000. Its totient is φ = 62872692480.

The previous prime is 102143882963. The next prime is 102143883001. The reversal of 102143882979 is 979288341201.

It is not a de Polignac number, because 102143882979 - 2⁴ = 102143882963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102143882909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26899309 + ... + 26903105.

It is an arithmetic number, because the mean of its divisors is an integer number (2552256000).

Almost surely, 2^102143882979 is an apocalyptic number.

102143882979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102143882979 is a deficient number, since it is larger than the sum of its proper divisors (61200501021).

102143882979 is a wasteful number, since it uses less digits than its factorization.

102143882979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5139 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 102143882979 in words is "one hundred two billion, one hundred forty-three million, eight hundred eighty-two thousand, nine hundred seventy-nine".