68747285439 has 160 divisors (see below), whose sum is σ = 135042969600. Its totient is φ = 33894650880.

The previous prime is 68747285351. The next prime is 68747285449. The reversal of 68747285439 is 93458274786.

68747285439 is a `hidden beast` number, since 6 + 87 + 4 + 7 + 2 + 8 + 543 + 9 = 666.

It is not a de Polignac number, because 68747285439 - 2⁸ = 68747285183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68747285449) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5671317 + ... + 5683425.

It is an arithmetic number, because the mean of its divisors is an integer number (844018560).

Almost surely, 2^68747285439 is an apocalyptic number.

68747285439 is a deficient number, since it is larger than the sum of its proper divisors (66295684161).

68747285439 is a wasteful number, since it uses less digits than its factorization.

68747285439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12195 (or 12186 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 68747285439 in words is "sixty-eight billion, seven hundred forty-seven million, two hundred eighty-five thousand, four hundred thirty-nine".