405727372415 has 4 divisors (see below), whose sum is σ = 486872846904. Its totient is φ = 324581897928.

The previous prime is 405727372399. The next prime is 405727372417. The reversal of 405727372415 is 514273727504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405727372415 - 2⁴ = 405727372399 is a prime.

It is a super-2 number, since 2×405727372415² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 405727372415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405727372417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40572737237 + ... + 40572737246.

It is an arithmetic number, because the mean of its divisors is an integer number (121718211726).

Almost surely, 2^405727372415 is an apocalyptic number.

405727372415 is a deficient number, since it is larger than the sum of its proper divisors (81145474489).

405727372415 is an equidigital number, since it uses as much as digits as its factorization.

405727372415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81145474488.

The product of its (nonzero) digits is 1646400, while the sum is 47.

The spelling of 405727372415 in words is "four hundred five billion, seven hundred twenty-seven million, three hundred seventy-two thousand, four hundred fifteen".