16274920945 has 8 divisors (see below), whose sum is σ = 19539696744. Its totient is φ = 13013409024.

The previous prime is 16274920943. The next prime is 16274920951. The reversal of 16274920945 is 54902947261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2026440256 + 14248480689 = 45016^2 + 119367^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16274920945 - 2¹ = 16274920943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16274920943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804984 + ... + 824953.

It is an arithmetic number, because the mean of its divisors is an integer number (2442462093).

Almost surely, 2^16274920945 is an apocalyptic number.

It is an amenable number.

16274920945 is a deficient number, since it is larger than the sum of its proper divisors (3264775799).

16274920945 is a wasteful number, since it uses less digits than its factorization.

16274920945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631939.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 16274920945 in words is "sixteen billion, two hundred seventy-four million, nine hundred twenty thousand, nine hundred forty-five".