9091337781 has 8 divisors (see below), whose sum is σ = 12292513344. Its totient is φ = 5975527040.

The previous prime is 9091337779. The next prime is 9091337917. The reversal of 9091337781 is 1877331909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9091337781 - 2¹ = 9091337779 is a prime.

It is a super-2 number, since 2×9091337781² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9091337781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9091337771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21340956 + ... + 21341381.

It is an arithmetic number, because the mean of its divisors is an integer number (1536564168).

Almost surely, 2^9091337781 is an apocalyptic number.

It is an amenable number.

9091337781 is a deficient number, since it is larger than the sum of its proper divisors (3201175563).

9091337781 is a wasteful number, since it uses less digits than its factorization.

9091337781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42682411.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 9091337781 is about 95348.5069678598. The cubic root of 9091337781 is about 2087.0968277087.

The spelling of 9091337781 in words is "nine billion, ninety-one million, three hundred thirty-seven thousand, seven hundred eighty-one".