623406739613 has 8 divisors (see below), whose sum is σ = 713615843520. Its totient is φ = 533485385280.

The previous prime is 623406739609. The next prime is 623406739649. The reversal of 623406739613 is 316937604326.

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

It is a cyclic number.

It is not a de Polignac number, because 623406739613 - 2² = 623406739609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623406739673) 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, 71932748 + ... + 71941413.

It is an arithmetic number, because the mean of its divisors is an integer number (89201980440).

Almost surely, 2^623406739613 is an apocalyptic number.

It is an amenable number.

623406739613 is a deficient number, since it is larger than the sum of its proper divisors (90209103907).

623406739613 is a wasteful number, since it uses less digits than its factorization.

623406739613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143874787.

The product of its (nonzero) digits is 2939328, while the sum is 50.

The spelling of 623406739613 in words is "six hundred twenty-three billion, four hundred six million, seven hundred thirty-nine thousand, six hundred thirteen".