612643353234 has 32 divisors (see below), whose sum is σ = 1379795005440. Its totient is φ = 179660806800.

The previous prime is 612643353229. The next prime is 612643353239. The reversal of 612643353234 is 432353346216.

It is an interprime number because it is at equal distance from previous prime (612643353229) and next prime (612643353239).

It is not an unprimeable number, because it can be changed into a prime (612643353239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149715294 + ... + 149719385.

It is an arithmetic number, because the mean of its divisors is an integer number (43118593920).

Almost surely, 2^612643353234 is an apocalyptic number.

612643353234 is an abundant number, since it is smaller than the sum of its proper divisors (767151652206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612643353234 is a wasteful number, since it uses less digits than its factorization.

612643353234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299434726.

The product of its digits is 933120, while the sum is 42.

The spelling of 612643353234 in words is "six hundred twelve billion, six hundred forty-three million, three hundred fifty-three thousand, two hundred thirty-four".