68746741540 has 24 divisors (see below), whose sum is σ = 144399850560. Its totient is φ = 27492659808.

The previous prime is 68746741537. The next prime is 68746741589. The reversal of 68746741540 is 4514764786.

It is a super-2 number, since 2×68746741540² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283350 + ... + 466669.

It is an arithmetic number, because the mean of its divisors is an integer number (6016660440).

Almost surely, 2^68746741540 is an apocalyptic number.

It is an amenable number.

68746741540 is an abundant number, since it is smaller than the sum of its proper divisors (75653109020).

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

68746741540 is a wasteful number, since it uses less digits than its factorization.

68746741540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754611 (or 754609 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 68746741540 in words is "sixty-eight billion, seven hundred forty-six million, seven hundred forty-one thousand, five hundred forty".