69649082051472 has 800 divisors, whose sum is σ = 255948375184128. Its totient is φ = 17759139840000.

The previous prime is 69649082051447. The next prime is 69649082051473. The reversal of 69649082051472 is 27415028094696.

69649082051472 is a `hidden beast` number, since 6 + 9 + 6 + 4 + 90 + 8 + 20 + 51 + 472 = 666.

It is a super-2 number, since 2×69649082051472² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (69649082051473) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3171478572 + ... + 3171500532.

Almost surely, 2^{69649082051472} 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 69649082051472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127974187592064).

69649082051472 is an abundant number, since it is smaller than the sum of its proper divisors (186299293132656).

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

69649082051472 is a wasteful number, since it uses less digits than its factorization.

69649082051472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22581 (or 22566 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 69649082051472 in words is "sixty-nine trillion, six hundred forty-nine billion, eighty-two million, fifty-one thousand, four hundred seventy-two".