745815878 has 16 divisors (see below), whose sum is σ = 1130734080. Its totient is φ = 368925000.

The previous prime is 745815877. The next prime is 745815899. The reversal of 745815878 is 878518547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745815877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70883 + ... + 80721.

It is an arithmetic number, because the mean of its divisors is an integer number (70670880).

Almost surely, 2^745815878 is an apocalyptic number.

745815878 is a deficient number, since it is larger than the sum of its proper divisors (384918202).

745815878 is a wasteful number, since it uses less digits than its factorization.

745815878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243.

The product of its digits is 2508800, while the sum is 53.

The square root of 745815878 is about 27309.6297668057. The cubic root of 745815878 is about 906.8675770944.

The spelling of 745815878 in words is "seven hundred forty-five million, eight hundred fifteen thousand, eight hundred seventy-eight".