4268791215 has 96 divisors (see below), whose sum is σ = 8219667456. Its totient is φ = 2036217600.

The previous prime is 4268791211. The next prime is 4268791223. The reversal of 4268791215 is 5121978624.

4268791215 is a `hidden beast` number, since 426 + 8 + 7 + 9 + 1 + 215 = 666.

It is not a de Polignac number, because 4268791215 - 2² = 4268791211 is a prime.

It is a super-3 number, since 3×4268791215³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4268791211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2941240 + ... + 2942690.

It is an arithmetic number, because the mean of its divisors is an integer number (85621536).

Almost surely, 2^4268791215 is an apocalyptic number.

4268791215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4268791215 is a deficient number, since it is larger than the sum of its proper divisors (3950876241).

4268791215 is a wasteful number, since it uses less digits than its factorization.

4268791215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1626 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 4268791215 is about 65335.9871357279. The cubic root of 4268791215 is about 1622.1896944012.

The spelling of 4268791215 in words is "four billion, two hundred sixty-eight million, seven hundred ninety-one thousand, two hundred fifteen".