68152273579 has 16 divisors (see below), whose sum is σ = 75080527200. Its totient is φ = 61843405728.

The previous prime is 68152273561. The next prime is 68152273589. The reversal of 68152273579 is 97537225186.

It is not a de Polignac number, because 68152273579 - 2¹⁷ = 68152142507 is a prime.

It is a super-2 number, since 2×68152273579² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68152273589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133264 + ... + 392509.

It is an arithmetic number, because the mean of its divisors is an integer number (4692532950).

Almost surely, 2^68152273579 is an apocalyptic number.

68152273579 is a deficient number, since it is larger than the sum of its proper divisors (6928253621).

68152273579 is an equidigital number, since it uses as much as digits as its factorization.

68152273579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525871 (or 525845 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 68152273579 in words is "sixty-eight billion, one hundred fifty-two million, two hundred seventy-three thousand, five hundred seventy-nine".