69421999968 has 240 divisors, whose sum is σ = 218977078320. Its totient is φ = 21508291584.

The previous prime is 69421999921. The next prime is 69421999993. The reversal of 69421999968 is 86999912496.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 69421999896 and 69421999905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2596846 + ... + 2623442.

It is an arithmetic number, because the mean of its divisors is an integer number (912404493).

Almost surely, 2^69421999968 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 69421999968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109488539160).

69421999968 is an abundant number, since it is smaller than the sum of its proper divisors (149555078352).

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

69421999968 is a wasteful number, since it uses less digits than its factorization.

69421999968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26691 (or 26674 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 72.

The spelling of 69421999968 in words is "sixty-nine billion, four hundred twenty-one million, nine hundred ninety-nine thousand, nine hundred sixty-eight".