521422914403 has 16 divisors (see below), whose sum is σ = 541966636800. Its totient is φ = 501113318400.

The previous prime is 521422914349. The next prime is 521422914407. The reversal of 521422914403 is 304419224125.

It is a cyclic number.

It is not a de Polignac number, because 521422914403 - 2³³ = 512832979811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521422914407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32144751 + ... + 32160967.

It is an arithmetic number, because the mean of its divisors is an integer number (33872914800).

Almost surely, 2^521422914403 is an apocalyptic number.

521422914403 is a deficient number, since it is larger than the sum of its proper divisors (20543722397).

521422914403 is a wasteful number, since it uses less digits than its factorization.

521422914403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23358.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 521422914403 in words is "five hundred twenty-one billion, four hundred twenty-two million, nine hundred fourteen thousand, four hundred three".