68987402594 has 16 divisors (see below), whose sum is σ = 118829976480. Its totient is φ = 29707493760.

The previous prime is 68987402593. The next prime is 68987402599. The reversal of 68987402594 is 49520478986.

It is not an unprimeable number, because it can be changed into a prime (68987402593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82520399 + ... + 82521234.

It is an arithmetic number, because the mean of its divisors is an integer number (7426873530).

Almost surely, 2^68987402594 is an apocalyptic number.

68987402594 is a deficient number, since it is larger than the sum of its proper divisors (49842573886).

68987402594 is a wasteful number, since it uses less digits than its factorization.

68987402594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165041665.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 68987402594 in words is "sixty-eight billion, nine hundred eighty-seven million, four hundred two thousand, five hundred ninety-four".