4012564815 has 24 divisors (see below), whose sum is σ = 7948700448. Its totient is φ = 1834315200.

The previous prime is 4012564781. The next prime is 4012564849. The reversal of 4012564815 is 5184652104.

It is a happy number.

4012564815 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 5 + 648 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (4012564781) and next prime (4012564849).

It is not a de Polignac number, because 4012564815 - 2¹³ = 4012556623 is a prime.

It is a super-2 number, since 2×4012564815² = 32201352789151968450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4012564815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6368836 + ... + 6369465.

It is an arithmetic number, because the mean of its divisors is an integer number (331195852).

Almost surely, 2^4012564815 is an apocalyptic number.

4012564815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4012564815 is a deficient number, since it is larger than the sum of its proper divisors (3936135633).

4012564815 is a wasteful number, since it uses less digits than its factorization.

4012564815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12738319 (or 12738316 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 4012564815 is about 63344.8089033348. The cubic root of 4012564815 is about 1589.0614313623.

The spelling of 4012564815 in words is "four billion, twelve million, five hundred sixty-four thousand, eight hundred fifteen".