102439705424 has 80 divisors (see below), whose sum is σ = 227941577472. Its totient is φ = 43688208384.

The previous prime is 102439705367. The next prime is 102439705427. The reversal of 102439705424 is 424507934201.

102439705424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102439705427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27005672 + ... + 27009464.

Almost surely, 2^102439705424 is an apocalyptic number.

102439705424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102439705424 is an abundant number, since it is smaller than the sum of its proper divisors (125501872048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102439705424 is a wasteful number, since it uses less digits than its factorization.

102439705424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924 (or 4918 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 102439705424 in words is "one hundred two billion, four hundred thirty-nine million, seven hundred five thousand, four hundred twenty-four".