68040498679 has 8 divisors (see below), whose sum is σ = 68535267840. Its totient is φ = 67546311000.

The previous prime is 68040498661. The next prime is 68040498737. The reversal of 68040498679 is 97689404086.

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 68040498679 - 2¹⁹ = 68039974391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68040498619) 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, 90894 + ... + 379924.

It is an arithmetic number, because the mean of its divisors is an integer number (8566908480).

Almost surely, 2^68040498679 is an apocalyptic number.

68040498679 is a deficient number, since it is larger than the sum of its proper divisors (494769161).

68040498679 is a wasteful number, since it uses less digits than its factorization.

68040498679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290741.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 68040498679 in words is "sixty-eight billion, forty million, four hundred ninety-eight thousand, six hundred seventy-nine".