68990796586 has 4 divisors (see below), whose sum is σ = 103486194882. Its totient is φ = 34495398292.

The previous prime is 68990796559. The next prime is 68990796593. The reversal of 68990796586 is 68569709986.

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

It can be written as a sum of positive squares in only one way, i.e., 55457895025 + 13532901561 = 235495^2 + 116331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17247699145 + ... + 17247699148.

Almost surely, 2^68990796586 is an apocalyptic number.

68990796586 is a deficient number, since it is larger than the sum of its proper divisors (34495398296).

68990796586 is a wasteful number, since it uses less digits than its factorization.

68990796586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34495398295.

The product of its (nonzero) digits is 352719360, while the sum is 73.

The spelling of 68990796586 in words is "sixty-eight billion, nine hundred ninety million, seven hundred ninety-six thousand, five hundred eighty-six".