13771007481 has 96 divisors (see below), whose sum is σ = 23867222400. Its totient is φ = 6981811200.

The previous prime is 13771007479. The next prime is 13771007489. The reversal of 13771007481 is 18470017731.

It is a happy number.

It is not a de Polignac number, because 13771007481 - 2¹ = 13771007479 is a prime.

It is a super-2 number, since 2×13771007481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13771007489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14696445 + ... + 14697381.

It is an arithmetic number, because the mean of its divisors is an integer number (248616900).

Almost surely, 2^13771007481 is an apocalyptic number.

13771007481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13771007481 is a deficient number, since it is larger than the sum of its proper divisors (10096214919).

13771007481 is a wasteful number, since it uses less digits than its factorization.

13771007481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 39.

The spelling of 13771007481 in words is "thirteen billion, seven hundred seventy-one million, seven thousand, four hundred eighty-one".