12485641798 has 16 divisors (see below), whose sum is σ = 22530481920. Its totient is φ = 5069358216.

The previous prime is 12485641757. The next prime is 12485641813. The reversal of 12485641798 is 89714658421.

It is a super-2 number, since 2×12485641798² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23468986 + ... + 23469517.

It is an arithmetic number, because the mean of its divisors is an integer number (1408155120).

Almost surely, 2^12485641798 is an apocalyptic number.

12485641798 is a deficient number, since it is larger than the sum of its proper divisors (10044840122).

12485641798 is a wasteful number, since it uses less digits than its factorization.

12485641798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46938531.

The product of its digits is 3870720, while the sum is 55.

The spelling of 12485641798 in words is "twelve billion, four hundred eighty-five million, six hundred forty-one thousand, seven hundred ninety-eight".