1361002401765 has 24 divisors (see below), whose sum is σ = 2362245949440. Its totient is φ = 724890987744.

The previous prime is 1361002401727. The next prime is 1361002401791. The reversal of 1361002401765 is 5671042001631.

1361002401765 is a `hidden beast` number, since 1 + 3 + 610 + 0 + 24 + 0 + 17 + 6 + 5 = 666.

It is not a de Polignac number, because 1361002401765 - 2⁸ = 1361002401509 is a prime.

It is a super-2 number, since 2×1361002401765² (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 23 ways as a sum of consecutive naturals, for example, 20319525 + ... + 20386394.

It is an arithmetic number, because the mean of its divisors is an integer number (98426914560).

Almost surely, 2^{1361002401765} is an apocalyptic number.

1361002401765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361002401765 is a deficient number, since it is larger than the sum of its proper divisors (1001243547675).

1361002401765 is a wasteful number, since it uses less digits than its factorization.

1361002401765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40706673 (or 40706670 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 1361002401765 in words is "one trillion, three hundred sixty-one billion, two million, four hundred one thousand, seven hundred sixty-five".