745260656784 has 80 divisors (see below), whose sum is σ = 2222078551680. Its totient is φ = 210823372800.

The previous prime is 745260656779. The next prime is 745260656807. The reversal of 745260656784 is 487656062547.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10946449 + ... + 11014320.

It is an arithmetic number, because the mean of its divisors is an integer number (27775981896).

Almost surely, 2^745260656784 is an apocalyptic number.

It is an amenable number.

745260656784 is an abundant number, since it is smaller than the sum of its proper divisors (1476817894896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745260656784 is a wasteful number, since it uses less digits than its factorization.

745260656784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21960888 (or 21960882 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 60.

The spelling of 745260656784 in words is "seven hundred forty-five billion, two hundred sixty million, six hundred fifty-six thousand, seven hundred eighty-four".