269472139981 has 8 divisors (see below), whose sum is σ = 294671210400. Its totient is φ = 244390003440.

The previous prime is 269472139973. The next prime is 269472139997. The reversal of 269472139981 is 189931274962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 269472139981 - 2³ = 269472139973 is a prime.

It is a super-2 number, since 2×269472139981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269472139901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29228646 + ... + 29237863.

It is an arithmetic number, because the mean of its divisors is an integer number (36833901300).

Almost surely, 2^269472139981 is an apocalyptic number.

It is an amenable number.

269472139981 is a deficient number, since it is larger than the sum of its proper divisors (25199070419).

269472139981 is a wasteful number, since it uses less digits than its factorization.

269472139981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58466939.

The product of its digits is 11757312, while the sum is 61.

The spelling of 269472139981 in words is "two hundred sixty-nine billion, four hundred seventy-two million, one hundred thirty-nine thousand, nine hundred eighty-one".