69999172432072 has 16 divisors (see below), whose sum is σ = 141344482795740. Its totient is φ = 32307310353216.

The previous prime is 69999172432037. The next prime is 69999172432087. The reversal of 69999172432072 is 27023427199996.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60871921786116 + 9127250645956 = 7802046^2 + 3021134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69999172431992 and 69999172432010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336534482743 + ... + 336534482950.

Almost surely, 2^{69999172432072} is an apocalyptic number.

It is an amenable number.

69999172432072 is an abundant number, since it is smaller than the sum of its proper divisors (71345310363668).

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

69999172432072 is a wasteful number, since it uses less digits than its factorization.

69999172432072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673068965712 (or 673068965708 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 70.

The spelling of 69999172432072 in words is "sixty-nine trillion, nine hundred ninety-nine billion, one hundred seventy-two million, four hundred thirty-two thousand, seventy-two".