1261712337325 has 48 divisors (see below), whose sum is σ = 1720294894080. Its totient is φ = 910337976000.

The previous prime is 1261712337307. The next prime is 1261712337337. The reversal of 1261712337325 is 5237332171621.

It is not a de Polignac number, because 1261712337325 - 2¹⁵ = 1261712304557 is a prime.

It is a super-2 number, since 2×1261712337325² (a number of 25 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 47 ways as a sum of consecutive naturals, for example, 55300170 + ... + 55322980.

It is an arithmetic number, because the mean of its divisors is an integer number (35839476960).

Almost surely, 2^{1261712337325} is an apocalyptic number.

It is an amenable number.

1261712337325 is a deficient number, since it is larger than the sum of its proper divisors (458582556755).

1261712337325 is a wasteful number, since it uses less digits than its factorization.

1261712337325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24418 (or 24413 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The spelling of 1261712337325 in words is "one trillion, two hundred sixty-one billion, seven hundred twelve million, three hundred thirty-seven thousand, three hundred twenty-five".