9492172938 has 48 divisors (see below), whose sum is σ = 21814832520. Its totient is φ = 2972648448.

The previous prime is 9492172867. The next prime is 9492172939. The reversal of 9492172938 is 8392712949.

It can be written as a sum of positive squares in 4 ways, for example, as 9180897489 + 311275449 = 95817^2 + 17643^2 .

It is not an unprimeable number, because it can be changed into a prime (9492172939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146856 + ... + 201372.

Almost surely, 2^9492172938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9492172938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10907416260).

9492172938 is an abundant number, since it is smaller than the sum of its proper divisors (12322659582).

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

9492172938 is a wasteful number, since it uses less digits than its factorization.

9492172938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55111 (or 55108 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 9492172938 is about 97427.7831935018. The cubic root of 9492172938 is about 2117.3299822466.

The spelling of 9492172938 in words is "nine billion, four hundred ninety-two million, one hundred seventy-two thousand, nine hundred thirty-eight".