2215761268 has 12 divisors (see below), whose sum is σ = 4431522592. Its totient is φ = 949611960.

The previous prime is 2215761263. The next prime is 2215761271. The reversal of 2215761268 is 8621675122.

2215761268 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2215761268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215761263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39567138 + ... + 39567193.

Almost surely, 2^2215761268 is an apocalyptic number.

2215761268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2215761268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215761268 is a wasteful number, since it uses less digits than its factorization.

2215761268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79134342 (or 79134340 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 2215761268 is about 47071.8734277700. The cubic root of 2215761268 is about 1303.6899637106.

The spelling of 2215761268 in words is "two billion, two hundred fifteen million, seven hundred sixty-one thousand, two hundred sixty-eight".