426693902057 has 4 divisors (see below), whose sum is σ = 427406246400. Its totient is φ = 425981557716.

The previous prime is 426693902023. The next prime is 426693902069. The reversal of 426693902057 is 750209396624.

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 a cyclic number.

It is not a de Polignac number, because 426693902057 - 2²² = 426689707753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426693902087) 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, 356171273 + ... + 356172470.

It is an arithmetic number, because the mean of its divisors is an integer number (106851561600).

Almost surely, 2^426693902057 is an apocalyptic number.

It is an amenable number.

426693902057 is a deficient number, since it is larger than the sum of its proper divisors (712344343).

426693902057 is an equidigital number, since it uses as much as digits as its factorization.

426693902057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712344342.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 426693902057 in words is "four hundred twenty-six billion, six hundred ninety-three million, nine hundred two thousand, fifty-seven".