814948139511 has 36 divisors (see below), whose sum is σ = 1295762879320. Its totient is φ = 493192735200.

The previous prime is 814948139497. The next prime is 814948139513. The reversal of 814948139511 is 115931849418.

814948139511 is a `hidden beast` number, since 8 + 1 + 4 + 94 + 8 + 1 + 39 + 511 = 666.

It is not a de Polignac number, because 814948139511 - 2¹⁷ = 814948008439 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 (814948139513) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 211005 + ... + 1293993.

Almost surely, 2^814948139511 is an apocalyptic number.

814948139511 is a deficient number, since it is larger than the sum of its proper divisors (480814739809).

814948139511 is a wasteful number, since it uses less digits than its factorization.

814948139511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083708 (or 1083694 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

It can be divided in two parts, 814948 and 139511, that added together give a palindrome (954459).

The spelling of 814948139511 in words is "eight hundred fourteen billion, nine hundred forty-eight million, one hundred thirty-nine thousand, five hundred eleven".