15442348975 has 12 divisors (see below), whose sum is σ = 19509807096. Its totient is φ = 12120786080.

The previous prime is 15442348919. The next prime is 15442348979. The reversal of 15442348975 is 57984324451.

It is not a de Polignac number, because 15442348975 - 2⁷ = 15442348847 is a prime.

It is a super-2 number, since 2×15442348975² (a number of 21 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 (15442348979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5825977 + ... + 5828626.

It is an arithmetic number, because the mean of its divisors is an integer number (1625817258).

Almost surely, 2^15442348975 is an apocalyptic number.

15442348975 is a deficient number, since it is larger than the sum of its proper divisors (4067458121).

15442348975 is a wasteful number, since it uses less digits than its factorization.

15442348975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11654666 (or 11654661 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 15442348975 in words is "fifteen billion, four hundred forty-two million, three hundred forty-eight thousand, nine hundred seventy-five".