623134156643 has 8 divisors (see below), whose sum is σ = 629362156800. Its totient is φ = 616909582728.

The previous prime is 623134156639. The next prime is 623134156651. The reversal of 623134156643 is 346651431326.

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 623134156643 - 2² = 623134156639 is a prime.

It is a super-2 number, since 2×623134156643² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623134156594 and 623134156603.

It is not an unprimeable number, because it can be changed into a prime (623134156693) 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, 490223 + ... + 1219256.

It is an arithmetic number, because the mean of its divisors is an integer number (78670269600).

Almost surely, 2^623134156643 is an apocalyptic number.

623134156643 is a deficient number, since it is larger than the sum of its proper divisors (6228000157).

623134156643 is a wasteful number, since it uses less digits than its factorization.

623134156643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713121.

The product of its digits is 933120, while the sum is 44.

Adding to 623134156643 its reverse (346651431326), we get a palindrome (969785587969).

The spelling of 623134156643 in words is "six hundred twenty-three billion, one hundred thirty-four million, one hundred fifty-six thousand, six hundred forty-three".