12490746345 has 160 divisors (see below), whose sum is σ = 29559188736. Its totient is φ = 4885401600.

The previous prime is 12490746341. The next prime is 12490746353. The reversal of 12490746345 is 54364709421.

12490746345 is a `hidden beast` number, since 1 + 2 + 4 + 9 + 0 + 7 + 4 + 634 + 5 = 666.

It is not a de Polignac number, because 12490746345 - 2² = 12490746341 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 12490746345.

It is not an unprimeable number, because it can be changed into a prime (12490746341) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 518365 + ... + 541925.

Almost surely, 2^12490746345 is an apocalyptic number.

12490746345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12490746345 is an abundant number, since it is smaller than the sum of its proper divisors (17068442391).

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

12490746345 is a wasteful number, since it uses less digits than its factorization.

12490746345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23613 (or 23604 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

12490746345 divided by its sum of digits (45) gives a triangular number (277572141 = T₂₃₅₆₁).

The spelling of 12490746345 in words is "twelve billion, four hundred ninety million, seven hundred forty-six thousand, three hundred forty-five".