1361270443525 has 24 divisors (see below), whose sum is σ = 1731078043200. Its totient is φ = 1061320995840.

The previous prime is 1361270443517. The next prime is 1361270443543. The reversal of 1361270443525 is 5253440721631.

It is not a de Polignac number, because 1361270443525 - 2³ = 1361270443517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927457 + ... + 1892806.

It is an arithmetic number, because the mean of its divisors is an integer number (72128251800).

Almost surely, 2^{1361270443525} is an apocalyptic number.

It is an amenable number.

1361270443525 is a deficient number, since it is larger than the sum of its proper divisors (369807599675).

1361270443525 is a wasteful number, since it uses less digits than its factorization.

1361270443525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820765 (or 2820760 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 1361270443525 in words is "one trillion, three hundred sixty-one billion, two hundred seventy million, four hundred forty-three thousand, five hundred twenty-five".