69981191472 has 30 divisors (see below), whose sum is σ = 180789479452. Its totient is φ = 23326452896.

The previous prime is 69981191389. The next prime is 69981191503. The reversal of 69981191472 is 27419118996.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1813693 + ... + 1851875.

Almost surely, 2^69981191472 is an apocalyptic number.

It is an amenable number.

69981191472 is an abundant number, since it is smaller than the sum of its proper divisors (110808287980).

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

69981191472 is an frugal number, since it uses more digits than its factorization.

69981191472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76377 (or 38188 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 57.

The spelling of 69981191472 in words is "sixty-nine billion, nine hundred eighty-one million, one hundred ninety-one thousand, four hundred seventy-two".