623455645631114 has 4 divisors (see below), whose sum is σ = 935183468446674. Its totient is φ = 311727822815556.

The previous prime is 623455645631111. The next prime is 623455645631153. The reversal of 623455645631114 is 411136546554326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 516810430906225 + 106645214724889 = 22733465^2 + 10326917^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 623455645631114.

It is not an unprimeable number, because it can be changed into a prime (623455645631111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155863911407777 + ... + 155863911407780.

Almost surely, 2^{623455645631114} is an apocalyptic number.

623455645631114 is a deficient number, since it is larger than the sum of its proper divisors (311727822815560).

623455645631114 is a wasteful number, since it uses less digits than its factorization.

623455645631114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311727822815559.

The product of its digits is 31104000, while the sum is 56.

The spelling of 623455645631114 in words is "six hundred twenty-three trillion, four hundred fifty-five billion, six hundred forty-five million, six hundred thirty-one thousand, one hundred fourteen".