745878554 has 16 divisors (see below), whose sum is σ = 1179134880. Its totient is φ = 352881360.

The previous prime is 745878541. The next prime is 745878563. The reversal of 745878554 is 455878547.

It is a junction number, because it is equal to n+sod(n) for n = 745878496 and 745878505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20909 + ... + 43919.

It is an arithmetic number, because the mean of its divisors is an integer number (73695930).

Almost surely, 2^745878554 is an apocalyptic number.

745878554 is a deficient number, since it is larger than the sum of its proper divisors (433256326).

745878554 is a wasteful number, since it uses less digits than its factorization.

745878554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23885.

The product of its digits is 6272000, while the sum is 53.

The square root of 745878554 is about 27310.7772500162. Note that the first 3 decimals coincide. The cubic root of 745878554 is about 906.8929798074.

The spelling of 745878554 in words is "seven hundred forty-five million, eight hundred seventy-eight thousand, five hundred fifty-four".