4064121815 has 16 divisors (see below), whose sum is σ = 5254242336. Its totient is φ = 2999971200.

The previous prime is 4064121791. The next prime is 4064121821. The reversal of 4064121815 is 5181214604.

It is not a de Polignac number, because 4064121815 - 2⁸ = 4064121559 is a prime.

It is a super-2 number, since 2×4064121815² = 33034172254317788450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166760 + ... + 189570.

It is an arithmetic number, because the mean of its divisors is an integer number (328390146).

Almost surely, 2^4064121815 is an apocalyptic number.

4064121815 is a deficient number, since it is larger than the sum of its proper divisors (1190120521).

4064121815 is a wasteful number, since it uses less digits than its factorization.

4064121815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25570.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 4064121815 is about 63750.4652139888. The cubic root of 4064121815 is about 1595.8383796187.

The spelling of 4064121815 in words is "four billion, sixty-four million, one hundred twenty-one thousand, eight hundred fifteen".