9156973749 has 48 divisors (see below), whose sum is σ = 15751983744. Its totient is φ = 4628257920.

The previous prime is 9156973729. The next prime is 9156973757. The reversal of 9156973749 is 9473796519.

It is not a de Polignac number, because 9156973749 - 2¹⁷ = 9156842677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9156973692 and 9156973701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9156973729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45319 + ... + 142715.

It is an arithmetic number, because the mean of its divisors is an integer number (328166328).

Almost surely, 2^9156973749 is an apocalyptic number.

It is an amenable number.

9156973749 is a deficient number, since it is larger than the sum of its proper divisors (6595009995).

9156973749 is a wasteful number, since it uses less digits than its factorization.

9156973749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97466 (or 97455 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 60.

The square root of 9156973749 is about 95692.0777755400. The cubic root of 9156973749 is about 2092.1074679250.

The spelling of 9156973749 in words is "nine billion, one hundred fifty-six million, nine hundred seventy-three thousand, seven hundred forty-nine".