69018989445 has 72 divisors (see below), whose sum is σ = 139226312160. Its totient is φ = 31537598400.

The previous prime is 69018989419. The next prime is 69018989449. The reversal of 69018989445 is 54498981096.

69018989445 is a `hidden beast` number, since 6 + 9 + 0 + 189 + 8 + 9 + 445 = 666.

It is not a de Polignac number, because 69018989445 - 2⁷ = 69018989317 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69018989449) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6280966 + ... + 6291944.

It is an arithmetic number, because the mean of its divisors is an integer number (1933698780).

Almost surely, 2^69018989445 is an apocalyptic number.

It is an amenable number.

69018989445 is an abundant number, since it is smaller than the sum of its proper divisors (70207322715).

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

69018989445 is a wasteful number, since it uses less digits than its factorization.

69018989445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855 (or 13845 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 69018989445 in words is "sixty-nine billion, eighteen million, nine hundred eighty-nine thousand, four hundred forty-five".