1367757620561 has 8 divisors (see below), whose sum is σ = 1368781933344. Its totient is φ = 1366733653920.

The previous prime is 1367757620533. The next prime is 1367757620563. The reversal of 1367757620561 is 1650267577631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1367757620561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1367757620497 and 1367757620506.

It is not an unprimeable number, because it can be changed into a prime (1367757620563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8107310 + ... + 8274296.

It is an arithmetic number, because the mean of its divisors is an integer number (171097741668).

Almost surely, 2^{1367757620561} is an apocalyptic number.

It is an amenable number.

1367757620561 is a deficient number, since it is larger than the sum of its proper divisors (1024312783).

1367757620561 is a wasteful number, since it uses less digits than its factorization.

1367757620561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173071.

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 1367757620561 in words is "one trillion, three hundred sixty-seven billion, seven hundred fifty-seven million, six hundred twenty thousand, five hundred sixty-one".