68697815249724 has 96 divisors (see below), whose sum is σ = 165930957029376. Its totient is φ = 22104436124160.

The previous prime is 68697815249669. The next prime is 68697815249741. The reversal of 68697815249724 is 42794251879686.

It is a super-2 number, since 2×68697815249724² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68697815249724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37741957 + ... + 39520259.

It is an arithmetic number, because the mean of its divisors is an integer number (1728447469056).

Almost surely, 2^{68697815249724} is an apocalyptic number.

It is an amenable number.

68697815249724 is an abundant number, since it is smaller than the sum of its proper divisors (97233141779652).

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

68697815249724 is a wasteful number, since it uses less digits than its factorization.

68697815249724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779035 (or 1779033 counting only the distinct ones).

The product of its digits is 2926264320, while the sum is 78.

The spelling of 68697815249724 in words is "sixty-eight trillion, six hundred ninety-seven billion, eight hundred fifteen million, two hundred forty-nine thousand, seven hundred twenty-four".