102439390511 has 8 divisors (see below), whose sum is σ = 107891247600. Its totient is φ = 96993564480.

The previous prime is 102439390481. The next prime is 102439390513. The reversal of 102439390511 is 115093934201.

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 102439390511 - 2⁶ = 102439390447 is a prime.

It is a super-2 number, since 2×102439390511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102439390513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472870 + ... + 1540851.

It is an arithmetic number, because the mean of its divisors is an integer number (13486405950).

Almost surely, 2^102439390511 is an apocalyptic number.

102439390511 is a deficient number, since it is larger than the sum of its proper divisors (5451857089).

102439390511 is a wasteful number, since it uses less digits than its factorization.

102439390511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015529.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 102439390511 in words is "one hundred two billion, four hundred thirty-nine million, three hundred ninety thousand, five hundred eleven".