11078791481 has 4 divisors (see below), whose sum is σ = 11134464000. Its totient is φ = 11023118964.

The previous prime is 11078791469. The next prime is 11078791483. The reversal of 11078791481 is 18419787011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11078791481 is a prime.

It is a super-2 number, since 2×11078791481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11078791483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27835961 + ... + 27836358.

It is an arithmetic number, because the mean of its divisors is an integer number (2783616000).

Almost surely, 2^11078791481 is an apocalyptic number.

It is an amenable number.

11078791481 is a deficient number, since it is larger than the sum of its proper divisors (55672519).

11078791481 is an equidigital number, since it uses as much as digits as its factorization.

11078791481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672518.

The product of its (nonzero) digits is 112896, while the sum is 47.

The spelling of 11078791481 in words is "eleven billion, seventy-eight million, seven hundred ninety-one thousand, four hundred eighty-one".