69777968 has 40 divisors (see below), whose sum is σ = 147053088. Its totient is φ = 31882752.

The previous prime is 69777947. The next prime is 69777997. The reversal of 69777968 is 86977796.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19796 + ... + 23052.

Almost surely, 2^69777968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69777968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73526544).

69777968 is an abundant number, since it is smaller than the sum of its proper divisors (77275120).

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

69777968 is a wasteful number, since it uses less digits than its factorization.

69777968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3375 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 59.

The square root of 69777968 is about 8353.3207767929. The cubic root of 69777968 is about 411.6923269276.

The spelling of 69777968 in words is "sixty-nine million, seven hundred seventy-seven thousand, nine hundred sixty-eight".