623421537614 has 4 divisors (see below), whose sum is σ = 935132306424. Its totient is φ = 311710768806.

The previous prime is 623421537569. The next prime is 623421537631. The reversal of 623421537614 is 416735124326.

623421537614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×623421537614² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155855384402 + ... + 155855384405.

It is an arithmetic number, because the mean of its divisors is an integer number (233783076606).

Almost surely, 2^623421537614 is an apocalyptic number.

623421537614 is a deficient number, since it is larger than the sum of its proper divisors (311710768810).

623421537614 is a wasteful number, since it uses less digits than its factorization.

623421537614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311710768809.

The product of its digits is 725760, while the sum is 44.

The spelling of 623421537614 in words is "six hundred twenty-three billion, four hundred twenty-one million, five hundred thirty-seven thousand, six hundred fourteen".