623451233345 has 8 divisors (see below), whose sum is σ = 748145802600. Its totient is φ = 498758104960.

The previous prime is 623451233341. The next prime is 623451233347. The reversal of 623451233345 is 543332154326.

It can be written as a sum of positive squares in 4 ways, for example, as 4252213681 + 619199019664 = 65209^2 + 786892^2 .

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

It is not a de Polignac number, because 623451233345 - 2² = 623451233341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623451233341) 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, 1229555 + ... + 1660935.

It is an arithmetic number, because the mean of its divisors is an integer number (93518225325).

Almost surely, 2^623451233345 is an apocalyptic number.

It is an amenable number.

623451233345 is a deficient number, since it is larger than the sum of its proper divisors (124694569255).

623451233345 is a wasteful number, since it uses less digits than its factorization.

623451233345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720435.

The product of its digits is 777600, while the sum is 41.

The spelling of 623451233345 in words is "six hundred twenty-three billion, four hundred fifty-one million, two hundred thirty-three thousand, three hundred forty-five".