68750079 has 8 divisors (see below), whose sum is σ = 91742640. Its totient is φ = 45795456.

The previous prime is 68750051. The next prime is 68750089. The reversal of 68750079 is 97005786.

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

It is not a de Polignac number, because 68750079 - 2⁷ = 68749951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68750079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68750029) 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, 4944 + ... + 12725.

It is an arithmetic number, because the mean of its divisors is an integer number (11467830).

Almost surely, 2^68750079 is an apocalyptic number.

68750079 is a deficient number, since it is larger than the sum of its proper divisors (22992561).

68750079 is a wasteful number, since it uses less digits than its factorization.

68750079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18969.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 68750079 is about 8291.5667397664. The cubic root of 68750079 is about 409.6607922127.

The spelling of 68750079 in words is "sixty-eight million, seven hundred fifty thousand, seventy-nine".