745672542624 has 72 divisors (see below), whose sum is σ = 2232111903840. Its totient is φ = 235475538048.

The previous prime is 745672542617. The next prime is 745672542653. The reversal of 745672542624 is 426245276547.

It is a happy number.

745672542624 is a `hidden beast` number, since 7 + 4 + 5 + 6 + 7 + 2 + 5 + 4 + 2 + 624 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68129812 + ... + 68140755.

It is an arithmetic number, because the mean of its divisors is an integer number (31001554220).

Almost surely, 2^745672542624 is an apocalyptic number.

It is an amenable number.

745672542624 is an abundant number, since it is smaller than the sum of its proper divisors (1486439361216).

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

745672542624 is a wasteful number, since it uses less digits than its factorization.

745672542624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136270602 (or 136270591 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 54.

The spelling of 745672542624 in words is "seven hundred forty-five billion, six hundred seventy-two million, five hundred forty-two thousand, six hundred twenty-four".