15420535017 has 4 divisors (see below), whose sum is σ = 20560713360. Its totient is φ = 10280356676.

The previous prime is 15420535007. The next prime is 15420535027. The reversal of 15420535017 is 71053502451.

15420535017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (15420535007) and next prime (15420535027).

It is a cyclic number.

It is not a de Polignac number, because 15420535017 - 2⁴ = 15420535001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15420535007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570089167 + ... + 2570089172.

It is an arithmetic number, because the mean of its divisors is an integer number (5140178340).

Almost surely, 2^15420535017 is an apocalyptic number.

It is an amenable number.

15420535017 is a deficient number, since it is larger than the sum of its proper divisors (5140178343).

15420535017 is an equidigital number, since it uses as much as digits as its factorization.

15420535017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140178342.

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 15420535017 in words is "fifteen billion, four hundred twenty million, five hundred thirty-five thousand, seventeen".