69890395212 has 288 divisors, whose sum is σ = 207209318400. Its totient is φ = 20332287360.

The previous prime is 69890395181. The next prime is 69890395217. The reversal of 69890395212 is 21259309896.

It is a happy number.

69890395212 is a `hidden beast` number, since 6 + 9 + 89 + 0 + 39 + 521 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (69890395217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84510343 + ... + 84511169.

It is an arithmetic number, because the mean of its divisors is an integer number (719476800).

Almost surely, 2^69890395212 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 69890395212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103604659200).

69890395212 is an abundant number, since it is smaller than the sum of its proper divisors (137318923188).

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

69890395212 is a wasteful number, since it uses less digits than its factorization.

69890395212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 69890395212 in words is "sixty-nine billion, eight hundred ninety million, three hundred ninety-five thousand, two hundred twelve".