68746057408 has 28 divisors (see below), whose sum is σ = 155906238352. Its totient is φ = 29462595840.

The previous prime is 68746057399. The next prime is 68746057417. The reversal of 68746057408 is 80475064786.

It is an interprime number because it is at equal distance from previous prime (68746057399) and next prime (68746057417).

It is a tau number, because it is divible by the number of its divisors (28).

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, 76725063 + ... + 76725958.

Almost surely, 2^68746057408 is an apocalyptic number.

It is an amenable number.

68746057408 is an abundant number, since it is smaller than the sum of its proper divisors (87160180944).

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

68746057408 is a wasteful number, since it uses less digits than its factorization.

68746057408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153451040 (or 153451030 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 68746057408 in words is "sixty-eight billion, seven hundred forty-six million, fifty-seven thousand, four hundred eight".