23154151544 has 16 divisors (see below), whose sum is σ = 43562209320. Its totient is φ = 11537562400.

The previous prime is 23154151541. The next prime is 23154151547. The reversal of 23154151544 is 44515145132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23154151541) and next prime (23154151547).

It is a super-2 number, since 2×23154151544² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154151541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4936682 + ... + 4941369.

Almost surely, 2^23154151544 is an apocalyptic number.

It is an amenable number.

23154151544 is a deficient number, since it is larger than the sum of its proper divisors (20408057776).

23154151544 is a wasteful number, since it uses less digits than its factorization.

23154151544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878350 (or 9878346 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

Adding to 23154151544 its reverse (44515145132), we get a palindrome (67669296676).

The spelling of 23154151544 in words is "twenty-three billion, one hundred fifty-four million, one hundred fifty-one thousand, five hundred forty-four".