102259079999 has 4 divisors (see below), whose sum is σ = 102469058064. Its totient is φ = 102049101936.

The previous prime is 102259079971. The next prime is 102259080019. The reversal of 102259079999 is 999970952201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999970952201 = 13 ⋅76920842477.

It is a cyclic number.

It is not a de Polignac number, because 102259079999 - 2²⁴ = 102242302783 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 (102259079399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104988302 + ... + 104989275.

It is an arithmetic number, because the mean of its divisors is an integer number (25617264516).

Almost surely, 2^102259079999 is an apocalyptic number.

102259079999 is a deficient number, since it is larger than the sum of its proper divisors (209978065).

102259079999 is an equidigital number, since it uses as much as digits as its factorization.

102259079999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209978064.

The product of its (nonzero) digits is 8266860, while the sum is 62.

The spelling of 102259079999 in words is "one hundred two billion, two hundred fifty-nine million, seventy-nine thousand, nine hundred ninety-nine".