249905450351432 has 16 divisors (see below), whose sum is σ = 469250827551600. Its totient is φ = 124771896337680.

The previous prime is 249905450351411. The next prime is 249905450351437. The reversal of 249905450351432 is 234153054509942.

It is not an unprimeable number, because it can be changed into a prime (249905450351437) 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 3 ways as a sum of consecutive naturals, for example, 22603598882 + ... + 22603609937.

It is an arithmetic number, because the mean of its divisors is an integer number (29328176721975).

Almost surely, 2^{249905450351432} is an apocalyptic number.

It is an amenable number.

249905450351432 is a deficient number, since it is larger than the sum of its proper divisors (219345377200168).

249905450351432 is a wasteful number, since it uses less digits than its factorization.

249905450351432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45207209516 (or 45207209512 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 249905450351432 in words is "two hundred forty-nine trillion, nine hundred five billion, four hundred fifty million, three hundred fifty-one thousand, four hundred thirty-two".