68161193464 has 32 divisors (see below), whose sum is σ = 157295063520. Its totient is φ = 26964867456.

The previous prime is 68161193461. The next prime is 68161193479. The reversal of 68161193464 is 46439116186.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68161193461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46813279 + ... + 46814734.

It is an arithmetic number, because the mean of its divisors is an integer number (4915470735).

Almost surely, 2^68161193464 is an apocalyptic number.

It is an amenable number.

68161193464 is an abundant number, since it is smaller than the sum of its proper divisors (89133870056).

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

68161193464 is a wasteful number, since it uses less digits than its factorization.

68161193464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93628039 (or 93628035 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The spelling of 68161193464 in words is "sixty-eight billion, one hundred sixty-one million, one hundred ninety-three thousand, four hundred sixty-four".