68775587001 has 63 divisors (see below), whose sum is σ = 113471116437. Its totient is φ = 41634968760.

The previous prime is 68775586991. The next prime is 68775587009. The reversal of 68775587001 is 10078557786.

It is a happy number.

The square root of 68775587001 is 262251.

It is a perfect power (a square), and thus also a powerful number.

68775587001 is a `hidden beast` number, since 6 + 87 + 7 + 558 + 7 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 68775587001 - 2²⁷ = 68641369273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68775587009) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 77888106 + ... + 77888988.

Almost surely, 2^68775587001 is an apocalyptic number.

68775587001 is the 262251-st square number.

68775587001 is the 131126-th centered octagonal number.

It is an amenable number.

68775587001 is a deficient number, since it is larger than the sum of its proper divisors (44695529436).

68775587001 is an frugal number, since it uses more digits than its factorization.

68775587001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 54.

The spelling of 68775587001 in words is "sixty-eight billion, seven hundred seventy-five million, five hundred eighty-seven thousand, one".