9161838072 has 40 divisors (see below), whose sum is σ = 25661631600. Its totient is φ = 3053945808.

The previous prime is 9161838047. The next prime is 9161838107. The reversal of 9161838072 is 2708381619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7068672 + ... + 7069967.

It is an arithmetic number, because the mean of its divisors is an integer number (641540790).

Almost surely, 2^9161838072 is an apocalyptic number.

It is an amenable number.

9161838072 is an abundant number, since it is smaller than the sum of its proper divisors (16499793528).

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

9161838072 is a wasteful number, since it uses less digits than its factorization.

9161838072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14138657 (or 14138644 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9161838072 is about 95717.4909407889. The cubic root of 9161838072 is about 2092.4778553944.

The spelling of 9161838072 in words is "nine billion, one hundred sixty-one million, eight hundred thirty-eight thousand, seventy-two".