69465797856 has 1152 divisors, whose sum is σ = 273006720000. Its totient is φ = 17118646272.

The previous prime is 69465797813. The next prime is 69465797879. The reversal of 69465797856 is 65879756496.

69465797856 is a `hidden beast` number, since 6 + 9 + 46 + 579 + 7 + 8 + 5 + 6 = 666.

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 polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 951586236 + ... + 951586308.

It is an arithmetic number, because the mean of its divisors is an integer number (236985000).

Almost surely, 2^69465797856 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 69465797856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136503360000).

69465797856 is an abundant number, since it is smaller than the sum of its proper divisors (203540922144).

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

69465797856 is a wasteful number, since it uses less digits than its factorization.

69465797856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 117 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 72.

The spelling of 69465797856 in words is "sixty-nine billion, four hundred sixty-five million, seven hundred ninety-seven thousand, eight hundred fifty-six".