426535106522015 has 4 divisors (see below), whose sum is σ = 511842127826424. Its totient is φ = 341228085217608.

The previous prime is 426535106522009. The next prime is 426535106522017. The reversal of 426535106522015 is 510225601535624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426535106522015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426535106522017) 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, 42653510652197 + ... + 42653510652206.

It is an arithmetic number, because the mean of its divisors is an integer number (127960531956606).

Almost surely, 2^{426535106522015} is an apocalyptic number.

426535106522015 is a deficient number, since it is larger than the sum of its proper divisors (85307021304409).

426535106522015 is an equidigital number, since it uses as much as digits as its factorization.

426535106522015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85307021304408.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 426535106522015 in words is "four hundred twenty-six trillion, five hundred thirty-five billion, one hundred six million, five hundred twenty-two thousand, fifteen".