11491189567964 has 12 divisors (see below), whose sum is σ = 20132511717864. Its totient is φ = 5739043362864.

The previous prime is 11491189567943. The next prime is 11491189568093. The reversal of 11491189567964 is 46976598119411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637851334 + ... + 1637858349.

It is an arithmetic number, because the mean of its divisors is an integer number (1677709309822).

Almost surely, 2^{11491189567964} is an apocalyptic number.

It is an amenable number.

11491189567964 is a deficient number, since it is larger than the sum of its proper divisors (8641322149900).

11491189567964 is a wasteful number, since it uses less digits than its factorization.

11491189567964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275710564 (or 3275710562 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 71.

The spelling of 11491189567964 in words is "eleven trillion, four hundred ninety-one billion, one hundred eighty-nine million, five hundred sixty-seven thousand, nine hundred sixty-four".