745044089384 has 48 divisors (see below), whose sum is σ = 1681068014100. Its totient is φ = 308294101248.

The previous prime is 745044089381. The next prime is 745044089389. The reversal of 745044089384 is 483980440547.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 655325868484 + 89718220900 = 809522^2 + 299530^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (745044089381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32757989 + ... + 32780724.

Almost surely, 2^745044089384 is an apocalyptic number.

It is an amenable number.

745044089384 is an abundant number, since it is smaller than the sum of its proper divisors (936023924716).

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

745044089384 is a wasteful number, since it uses less digits than its factorization.

745044089384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65538762 (or 65538751 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 745044089384 in words is "seven hundred forty-five billion, forty-four million, eighty-nine thousand, three hundred eighty-four".