11790740091 has 32 divisors (see below), whose sum is σ = 17062133760. Its totient is φ = 7199512704.

The previous prime is 11790740083. The next prime is 11790740113. The reversal of 11790740091 is 19004709711.

It is not a de Polignac number, because 11790740091 - 2³ = 11790740083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11790740011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4093990 + ... + 4096868.

It is an arithmetic number, because the mean of its divisors is an integer number (533191680).

Almost surely, 2^11790740091 is an apocalyptic number.

11790740091 is a deficient number, since it is larger than the sum of its proper divisors (5271393669).

11790740091 is a wasteful number, since it uses less digits than its factorization.

11790740091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675.

The product of its (nonzero) digits is 15876, while the sum is 39.

The spelling of 11790740091 in words is "eleven billion, seven hundred ninety million, seven hundred forty thousand, ninety-one".