9149472774 has 40 divisors (see below), whose sum is σ = 22078647360. Its totient is φ = 2815221744.

The previous prime is 9149472757. The next prime is 9149472797. The reversal of 9149472774 is 4772749419.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 9149472774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2170134 + ... + 2174345.

It is an arithmetic number, because the mean of its divisors is an integer number (551966184).

Almost surely, 2^9149472774 is an apocalyptic number.

9149472774 is an abundant number, since it is smaller than the sum of its proper divisors (12929174586).

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

9149472774 is a wasteful number, since it uses less digits than its factorization.

9149472774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344506 (or 4344497 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 9149472774 is about 95652.8764543963. The cubic root of 9149472774 is about 2091.5360588857.

The spelling of 9149472774 in words is "nine billion, one hundred forty-nine million, four hundred seventy-two thousand, seven hundred seventy-four".