9045978473 has 4 divisors (see below), whose sum is σ = 10338261120. Its totient is φ = 7753695828.

The previous prime is 9045978457. The next prime is 9045978521. The reversal of 9045978473 is 3748795409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3748795409 = 17 ⋅220517377.

It is a cyclic number.

It is not a de Polignac number, because 9045978473 - 2⁴ = 9045978457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9045978433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646141313 + ... + 646141326.

It is an arithmetic number, because the mean of its divisors is an integer number (2584565280).

Almost surely, 2^9045978473 is an apocalyptic number.

It is an amenable number.

9045978473 is a deficient number, since it is larger than the sum of its proper divisors (1292282647).

9045978473 is a wasteful number, since it uses less digits than its factorization.

9045978473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292282646.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The square root of 9045978473 is about 95110.3489269175. The cubic root of 9045978473 is about 2083.6199961692.

The spelling of 9045978473 in words is "nine billion, forty-five million, nine hundred seventy-eight thousand, four hundred seventy-three".