1298625819964 has 12 divisors (see below), whose sum is σ = 2479194747288. Its totient is φ = 590284463600.

The previous prime is 1298625819949. The next prime is 1298625820013. The reversal of 1298625819964 is 4699185268921.

It is a super-2 number, since 2×1298625819964² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1298625819893 and 1298625819902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14757111547 + ... + 14757111634.

It is an arithmetic number, because the mean of its divisors is an integer number (206599562274).

Almost surely, 2^{1298625819964} is an apocalyptic number.

It is an amenable number.

1298625819964 is a deficient number, since it is larger than the sum of its proper divisors (1180568927324).

1298625819964 is a wasteful number, since it uses less digits than its factorization.

1298625819964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29514223196 (or 29514223194 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 70.

The spelling of 1298625819964 in words is "one trillion, two hundred ninety-eight billion, six hundred twenty-five million, eight hundred nineteen thousand, nine hundred sixty-four".