68249162253 has 4 divisors (see below), whose sum is σ = 90998883008. Its totient is φ = 45499441500.

The previous prime is 68249162221. The next prime is 68249162273. The reversal of 68249162253 is 35226194286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68249162253 - 2⁵ = 68249162221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68249162203) 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, 11374860373 + ... + 11374860378.

It is an arithmetic number, because the mean of its divisors is an integer number (22749720752).

Almost surely, 2^68249162253 is an apocalyptic number.

It is an amenable number.

68249162253 is a deficient number, since it is larger than the sum of its proper divisors (22749720755).

68249162253 is a wasteful number, since it uses less digits than its factorization.

68249162253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22749720754.

The product of its digits is 1244160, while the sum is 48.

The spelling of 68249162253 in words is "sixty-eight billion, two hundred forty-nine million, one hundred sixty-two thousand, two hundred fifty-three".