46405716521 has 6 divisors (see below), whose sum is σ = 47297819310. Its totient is φ = 45530134208.

The previous prime is 46405716517. The next prime is 46405716523. The reversal of 46405716521 is 12561750464.

It can be written as a sum of positive squares in 3 ways, for example, as 24799950400 + 21605766121 = 157480^2 + 146989^2 .

It is not a de Polignac number, because 46405716521 - 2² = 46405716517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46405716523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8257376 + ... + 8262993.

It is an arithmetic number, because the mean of its divisors is an integer number (7882969885).

Almost surely, 2^46405716521 is an apocalyptic number.

It is an amenable number.

46405716521 is a deficient number, since it is larger than the sum of its proper divisors (892102789).

46405716521 is an equidigital number, since it uses as much as digits as its factorization.

46405716521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520475 (or 16520422 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 46405716521 in words is "forty-six billion, four hundred five million, seven hundred sixteen thousand, five hundred twenty-one".