69474129878016 has 440 divisors, whose sum is σ = 212206808183040. Its totient is φ = 22630088613888.

The previous prime is 69474129877883. The next prime is 69474129878059. The reversal of 69474129878016 is 61087892147496.

69474129878016 is a `hidden beast` number, since 6 + 9 + 47 + 412 + 9 + 87 + 80 + 16 = 666.

69474129878016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2569010991 + ... + 2569038033.

It is an arithmetic number, because the mean of its divisors is an integer number (482288200416).

Almost surely, 2^{69474129878016} 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 69474129878016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106103404091520).

69474129878016 is an abundant number, since it is smaller than the sum of its proper divisors (142732678305024).

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

69474129878016 is a wasteful number, since it uses less digits than its factorization.

69474129878016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27781 (or 27754 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 72.

The spelling of 69474129878016 in words is "sixty-nine trillion, four hundred seventy-four billion, one hundred twenty-nine million, eight hundred seventy-eight thousand, sixteen".