623853433401 has 8 divisors (see below), whose sum is σ = 907423175904. Its totient is φ = 378092989920.

The previous prime is 623853433397. The next prime is 623853433417. The reversal of 623853433401 is 104334358326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623853433401 - 2² = 623853433397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623853433471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9452324716 + ... + 9452324781.

It is an arithmetic number, because the mean of its divisors is an integer number (113427896988).

Almost surely, 2^623853433401 is an apocalyptic number.

It is an amenable number.

623853433401 is a deficient number, since it is larger than the sum of its proper divisors (283569742503).

623853433401 is a wasteful number, since it uses less digits than its factorization.

623853433401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18904649511.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 623853433401 in words is "six hundred twenty-three billion, eight hundred fifty-three million, four hundred thirty-three thousand, four hundred one".