14993797511 has 16 divisors (see below), whose sum is σ = 18696634368. Its totient is φ = 11681560800.

The previous prime is 14993797501. The next prime is 14993797519. The reversal of 14993797511 is 11579739941.

It is not a de Polignac number, because 14993797511 - 2¹⁰ = 14993796487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14993797519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618821 + ... + 642593.

It is an arithmetic number, because the mean of its divisors is an integer number (1168539648).

Almost surely, 2^14993797511 is an apocalyptic number.

14993797511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14993797511 is a deficient number, since it is larger than the sum of its proper divisors (3702836857).

14993797511 is a wasteful number, since it uses less digits than its factorization.

14993797511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31982.

The product of its digits is 2143260, while the sum is 56.

The spelling of 14993797511 in words is "fourteen billion, nine hundred ninety-three million, seven hundred ninety-seven thousand, five hundred eleven".