1298727274156 has 24 divisors (see below), whose sum is σ = 2450379695904. Its totient is φ = 598732189440.

The previous prime is 1298727274081. The next prime is 1298727274177. The reversal of 1298727274156 is 6514727278921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1298727274094 and 1298727274103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14128720 + ... + 14220343.

It is an arithmetic number, because the mean of its divisors is an integer number (102099153996).

Almost surely, 2^{1298727274156} is an apocalyptic number.

It is an amenable number.

1298727274156 is a deficient number, since it is larger than the sum of its proper divisors (1151652421748).

1298727274156 is a wasteful number, since it uses less digits than its factorization.

1298727274156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349961 (or 28349959 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 61.

The spelling of 1298727274156 in words is "one trillion, two hundred ninety-eight billion, seven hundred twenty-seven million, two hundred seventy-four thousand, one hundred fifty-six".