15432400323 has 12 divisors (see below), whose sum is σ = 22293940968. Its totient is φ = 10287022560.

The previous prime is 15432400303. The next prime is 15432400327. The reversal of 15432400323 is 32300423451.

15432400323 is a `hidden beast` number, since 15 + 4 + 324 + 0 + 0 + 323 = 666.

It is not a de Polignac number, because 15432400323 - 2¹⁶ = 15432334787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15432400327) 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 11 ways as a sum of consecutive naturals, for example, 21738 + ... + 177023.

It is an arithmetic number, because the mean of its divisors is an integer number (1857828414).

Almost surely, 2^15432400323 is an apocalyptic number.

15432400323 is a deficient number, since it is larger than the sum of its proper divisors (6861540645).

15432400323 is a wasteful number, since it uses less digits than its factorization.

15432400323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207394 (or 207391 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 15432400323 its reverse (32300423451), we get a palindrome (47732823774).

The spelling of 15432400323 in words is "fifteen billion, four hundred thirty-two million, four hundred thousand, three hundred twenty-three".