69251332668 has 96 divisors (see below), whose sum is σ = 197073321984. Its totient is φ = 18475527168.

The previous prime is 69251332649. The next prime is 69251332691. The reversal of 69251332668 is 86623315296.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 69251332668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9571 + ... + 372282.

It is an arithmetic number, because the mean of its divisors is an integer number (2052847104).

Almost surely, 2^69251332668 is an apocalyptic number.

69251332668 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69251332668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98536660992).

69251332668 is an abundant number, since it is smaller than the sum of its proper divisors (127821989316).

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

69251332668 is a wasteful number, since it uses less digits than its factorization.

69251332668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382011 (or 382009 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The spelling of 69251332668 in words is "sixty-nine billion, two hundred fifty-one million, three hundred thirty-two thousand, six hundred sixty-eight".