426661061461535 has 4 divisors (see below), whose sum is σ = 511993273753848. Its totient is φ = 341328849169224.

The previous prime is 426661061461519. The next prime is 426661061461541. The reversal of 426661061461535 is 535164160166624.

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

It is a cyclic number.

It is not a de Polignac number, because 426661061461535 - 2⁴ = 426661061461519 is a prime.

It is a super-2 number, since 2×426661061461535² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42666106146149 + ... + 42666106146158.

It is an arithmetic number, because the mean of its divisors is an integer number (127998318438462).

Almost surely, 2^{426661061461535} is an apocalyptic number.

426661061461535 is a deficient number, since it is larger than the sum of its proper divisors (85332212292313).

426661061461535 is an equidigital number, since it uses as much as digits as its factorization.

426661061461535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85332212292312.

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 426661061461535 in words is "four hundred twenty-six trillion, six hundred sixty-one billion, sixty-one million, four hundred sixty-one thousand, five hundred thirty-five".