68153087740 has 12 divisors (see below), whose sum is σ = 143121484296. Its totient is φ = 27261235088.

The previous prime is 68153087719. The next prime is 68153087777. The reversal of 68153087740 is 4778035186.

It is a happy number.

It is a super-2 number, since 2×68153087740² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703827174 + ... + 1703827213.

It is an arithmetic number, because the mean of its divisors is an integer number (11926790358).

Almost surely, 2^68153087740 is an apocalyptic number.

It is an amenable number.

68153087740 is an abundant number, since it is smaller than the sum of its proper divisors (74968396556).

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

68153087740 is a wasteful number, since it uses less digits than its factorization.

68153087740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407654396 (or 3407654394 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 68153087740 in words is "sixty-eight billion, one hundred fifty-three million, eighty-seven thousand, seven hundred forty".