102012877439 has 8 divisors (see below), whose sum is σ = 113172992640. Its totient is φ = 91167131800.

The previous prime is 102012877423. The next prime is 102012877471. The reversal of 102012877439 is 934778210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102012877439 - 2⁴ = 102012877423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012877439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012877139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78591707 + ... + 78593004.

It is an arithmetic number, because the mean of its divisors is an integer number (14146624080).

Almost surely, 2^102012877439 is an apocalyptic number.

102012877439 is a deficient number, since it is larger than the sum of its proper divisors (11160115201).

102012877439 is a wasteful number, since it uses less digits than its factorization.

102012877439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157184781.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 102012877439 in words is "one hundred two billion, twelve million, eight hundred seventy-seven thousand, four hundred thirty-nine".