1461839683561 has 8 divisors (see below), whose sum is σ = 1476818875584. Its totient is φ = 1446875618160.

The previous prime is 1461839683441. The next prime is 1461839683567. The reversal of 1461839683561 is 1653869381641.

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 not a de Polignac number, because 1461839683561 - 2¹⁵ = 1461839650793 is a prime.

It is a super-2 number, since 2×1461839683561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1461839683561.

It is not an unprimeable number, because it can be changed into a prime (1461839683567) 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, 3587335 + ... + 3973996.

It is an arithmetic number, because the mean of its divisors is an integer number (184602359448).

Almost surely, 2^{1461839683561} is an apocalyptic number.

It is an amenable number.

1461839683561 is a deficient number, since it is larger than the sum of its proper divisors (14979192023).

1461839683561 is a wasteful number, since it uses less digits than its factorization.

1461839683561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563311.

The product of its digits is 22394880, while the sum is 61.

The spelling of 1461839683561 in words is "one trillion, four hundred sixty-one billion, eight hundred thirty-nine million, six hundred eighty-three thousand, five hundred sixty-one".