12750291945 has 32 divisors (see below), whose sum is σ = 23279821440. Its totient is φ = 6616365120.

The previous prime is 12750291913. The next prime is 12750291997. The reversal of 12750291945 is 54919205721.

12750291945 is a `hidden beast` number, since 1 + 275 + 0 + 291 + 94 + 5 = 666.

It is not a de Polignac number, because 12750291945 - 2⁵ = 12750291913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12750291945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1271311 + ... + 1281300.

It is an arithmetic number, because the mean of its divisors is an integer number (727494420).

Almost surely, 2^12750291945 is an apocalyptic number.

12750291945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12750291945 is a deficient number, since it is larger than the sum of its proper divisors (10529529495).

12750291945 is a wasteful number, since it uses less digits than its factorization.

12750291945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552662 (or 2552656 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 12750291945 in words is "twelve billion, seven hundred fifty million, two hundred ninety-one thousand, nine hundred forty-five".