423945263910 has 64 divisors (see below), whose sum is σ = 1163239833600. Its totient is φ = 96866896512.

The previous prime is 423945263881. The next prime is 423945263923. The reversal of 423945263910 is 19362549324.

It is a self number, because there is not a number n which added to its sum of digits gives 423945263910.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223771 + ... + 947609.

It is an arithmetic number, because the mean of its divisors is an integer number (18175622400).

Almost surely, 2^423945263910 is an apocalyptic number.

423945263910 is an abundant number, since it is smaller than the sum of its proper divisors (739294569690).

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

423945263910 is a wasteful number, since it uses less digits than its factorization.

423945263910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726645.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 423945263910 in words is "four hundred twenty-three billion, nine hundred forty-five million, two hundred sixty-three thousand, nine hundred ten".