406713467521 has 4 divisors (see below), whose sum is σ = 406778164992. Its totient is φ = 406648770052.

The previous prime is 406713467507. The next prime is 406713467603. The reversal of 406713467521 is 125764317604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406713467521 - 2³¹ = 404565983873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406713467021) 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, 32339305 + ... + 32351878.

It is an arithmetic number, because the mean of its divisors is an integer number (101694541248).

Almost surely, 2^406713467521 is an apocalyptic number.

It is an amenable number.

406713467521 is a deficient number, since it is larger than the sum of its proper divisors (64697471).

406713467521 is an equidigital number, since it uses as much as digits as its factorization.

406713467521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64697470.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 406713467521 in words is "four hundred six billion, seven hundred thirteen million, four hundred sixty-seven thousand, five hundred twenty-one".