1361610403925 has 12 divisors (see below), whose sum is σ = 1694492205156. Its totient is φ = 1085355868800.

The previous prime is 1361610403913. The next prime is 1361610403939. The reversal of 1361610403925 is 5293040161631.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 55145476 + 1361555258449 = 7426^2 + 1166857^2 .

It is not a de Polignac number, because 1361610403925 - 2³² = 1357315436629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98304296 + ... + 98318145.

It is an arithmetic number, because the mean of its divisors is an integer number (141207683763).

Almost surely, 2^{1361610403925} is an apocalyptic number.

It is an amenable number.

1361610403925 is a deficient number, since it is larger than the sum of its proper divisors (332881801231).

1361610403925 is a wasteful number, since it uses less digits than its factorization.

1361610403925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196622728 (or 196622723 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 1361610403925 in words is "one trillion, three hundred sixty-one billion, six hundred ten million, four hundred three thousand, nine hundred twenty-five".