2361415681 has 16 divisors (see below), whose sum is σ = 2481684480. Its totient is φ = 2242682640.

The previous prime is 2361415673. The next prime is 2361415687. The reversal of 2361415681 is 1865141632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2361415681 - 2³ = 2361415673 is a prime.

It is a super-3 number, since 3×2361415681³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 2361415681.

It is not an unprimeable number, because it can be changed into a prime (2361415687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2735856 + ... + 2736718.

It is an arithmetic number, because the mean of its divisors is an integer number (155105280).

Almost surely, 2^2361415681 is an apocalyptic number.

It is an amenable number.

2361415681 is a deficient number, since it is larger than the sum of its proper divisors (120268799).

2361415681 is a wasteful number, since it uses less digits than its factorization.

2361415681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596.

The product of its digits is 34560, while the sum is 37.

The square root of 2361415681 is about 48594.3996876183. The cubic root of 2361415681 is about 1331.6522103363.

The spelling of 2361415681 in words is "two billion, three hundred sixty-one million, four hundred fifteen thousand, six hundred eighty-one".