745664587622 has 8 divisors (see below), whose sum is σ = 1118510932872. Its totient is φ = 372827610000.

The previous prime is 745664587621. The next prime is 745664587643. The reversal of 745664587622 is 226785466547.

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

It is a super-2 number, since 2×745664587622² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745664587621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139404 + ... + 2463407.

It is an arithmetic number, because the mean of its divisors is an integer number (139813866609).

Almost surely, 2^745664587622 is an apocalyptic number.

745664587622 is a deficient number, since it is larger than the sum of its proper divisors (372846345250).

745664587622 is a wasteful number, since it uses less digits than its factorization.

745664587622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683814.

The product of its digits is 135475200, while the sum is 62.

The spelling of 745664587622 in words is "seven hundred forty-five billion, six hundred sixty-four million, five hundred eighty-seven thousand, six hundred twenty-two".