2694216861 has 24 divisors (see below), whose sum is σ = 4542230784. Its totient is φ = 1506794400.

The previous prime is 2694216859. The next prime is 2694216881. The reversal of 2694216861 is 1686124962.

2694216861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2694216861 - 2¹ = 2694216859 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2694216821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451990 + ... + 457911.

It is an arithmetic number, because the mean of its divisors is an integer number (189259616).

Almost surely, 2^2694216861 is an apocalyptic number.

2694216861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2694216861 is a deficient number, since it is larger than the sum of its proper divisors (1848013923).

2694216861 is a wasteful number, since it uses less digits than its factorization.

2694216861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909961 (or 909958 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2694216861 is about 51905.8461158278. The cubic root of 2694216861 is about 1391.4817559636.

The spelling of 2694216861 in words is "two billion, six hundred ninety-four million, two hundred sixteen thousand, eight hundred sixty-one".