69977877996 has 144 divisors (see below), whose sum is σ = 179679413760. Its totient is φ = 21184001280.

The previous prime is 69977877989. The next prime is 69977877997.

It is a happy number.

69977877996 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (69977877997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59758491 + ... + 59759661.

Almost surely, 2^69977877996 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 69977877996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89839706880).

69977877996 is an abundant number, since it is smaller than the sum of its proper divisors (109701535764).

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

69977877996 is a wasteful number, since it uses less digits than its factorization.

69977877996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1641 counting only the distinct ones).

The product of its digits is 4536852768, while the sum is 84.

The spelling of 69977877996 in words is "sixty-nine billion, nine hundred seventy-seven million, eight hundred seventy-seven thousand, nine hundred ninety-six".