10405240815 has 8 divisors (see below), whose sum is σ = 16648385328. Its totient is φ = 5549461760.

The previous prime is 10405240771. The next prime is 10405240817. The reversal of 10405240815 is 51804250401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10405240815 - 2¹³ = 10405232623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10405240817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346841346 + ... + 346841375.

It is an arithmetic number, because the mean of its divisors is an integer number (2081048166).

Almost surely, 2^10405240815 is an apocalyptic number.

10405240815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10405240815 is a deficient number, since it is larger than the sum of its proper divisors (6243144513).

10405240815 is an equidigital number, since it uses as much as digits as its factorization.

10405240815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693682729.

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 10405240815 in words is "ten billion, four hundred five million, two hundred forty thousand, eight hundred fifteen".