12494400975 has 144 divisors (see below), whose sum is σ = 27236352000. Its totient is φ = 5462614080.

The previous prime is 12494400973. The next prime is 12494400979. The reversal of 12494400975 is 57900449421.

It is not a de Polignac number, because 12494400975 - 2¹ = 12494400973 is a prime.

It is a super-2 number, since 2×12494400975² (a number of 21 digits) contains 22 as substring.

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 12494400975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12494400973) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1771506 + ... + 1778544.

Almost surely, 2^12494400975 is an apocalyptic number.

12494400975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12494400975 is an abundant number, since it is smaller than the sum of its proper divisors (14741951025).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12494400975 is a wasteful number, since it uses less digits than its factorization.

12494400975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099 (or 7077 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 12494400975 in words is "twelve billion, four hundred ninety-four million, four hundred thousand, nine hundred seventy-five".