41400865815 has 32 divisors (see below), whose sum is σ = 67906944000. Its totient is φ = 21526068480.

The previous prime is 41400865777. The next prime is 41400865817. The reversal of 41400865815 is 51856800414.

41400865815 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 41400865815 - 2²⁵ = 41367311383 is a prime.

It is a super-2 number, since 2×41400865815² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41400865817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836326 + ... + 884444.

It is an arithmetic number, because the mean of its divisors is an integer number (2122092000).

Almost surely, 2^41400865815 is an apocalyptic number.

41400865815 is a deficient number, since it is larger than the sum of its proper divisors (26506078185).

41400865815 is a wasteful number, since it uses less digits than its factorization.

41400865815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49567.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 41400865815 in words is "forty-one billion, four hundred million, eight hundred sixty-five thousand, eight hundred fifteen".