2681837645 has 16 divisors (see below), whose sum is σ = 3230461440. Its totient is φ = 2137319424.

The previous prime is 2681837603. The next prime is 2681837647. The reversal of 2681837645 is 5467381862.

It is a cyclic number.

It is not a de Polignac number, because 2681837645 - 2¹⁶ = 2681772109 is a prime.

It is a super-3 number, since 3×2681837645³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2681837593 and 2681837602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681837647) 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, 2325389 + ... + 2326541.

It is an arithmetic number, because the mean of its divisors is an integer number (201903840).

Almost surely, 2^2681837645 is an apocalyptic number.

It is an amenable number.

2681837645 is a deficient number, since it is larger than the sum of its proper divisors (548623795).

2681837645 is a wasteful number, since it uses less digits than its factorization.

2681837645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its digits is 1935360, while the sum is 50.

The square root of 2681837645 is about 51786.4619857352. The cubic root of 2681837645 is about 1389.3473196510.

The spelling of 2681837645 in words is "two billion, six hundred eighty-one million, eight hundred thirty-seven thousand, six hundred forty-five".