68597340787 has 4 divisors (see below), whose sum is σ = 69760007640. Its totient is φ = 67434673936.

The previous prime is 68597340739. The next prime is 68597340803. The reversal of 68597340787 is 78704379586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68597340787 - 2¹⁹ = 68596816499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68597340187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581333338 + ... + 581333455.

It is an arithmetic number, because the mean of its divisors is an integer number (17440001910).

Almost surely, 2^68597340787 is an apocalyptic number.

68597340787 is a deficient number, since it is larger than the sum of its proper divisors (1162666853).

68597340787 is a wasteful number, since it uses less digits than its factorization.

68597340787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162666852.

The product of its (nonzero) digits is 71124480, while the sum is 64.

The spelling of 68597340787 in words is "sixty-eight billion, five hundred ninety-seven million, three hundred forty thousand, seven hundred eighty-seven".