426212001223646 has 16 divisors (see below), whose sum is σ = 697553500915440. Its totient is φ = 193700594292480.

The previous prime is 426212001223607. The next prime is 426212001223663. The reversal of 426212001223646 is 646322100212624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606541171 + ... + 1606806446.

It is an arithmetic number, because the mean of its divisors is an integer number (43597093807215).

Almost surely, 2^{426212001223646} is an apocalyptic number.

426212001223646 is a deficient number, since it is larger than the sum of its proper divisors (271341499691794).

426212001223646 is a wasteful number, since it uses less digits than its factorization.

426212001223646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213353659.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 426212001223646 in words is "four hundred twenty-six trillion, two hundred twelve billion, one million, two hundred twenty-three thousand, six hundred forty-six".