76536511481 has 4 divisors (see below), whose sum is σ = 77279584512. Its totient is φ = 75793438452.

The previous prime is 76536511463. The next prime is 76536511483. The reversal of 76536511481 is 18411563567.

It is a happy number.

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 not a de Polignac number, because 76536511481 - 2²² = 76532317177 is a prime.

It is a super-2 number, since 2×76536511481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76536511483) 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, 371536361 + ... + 371536566.

It is an arithmetic number, because the mean of its divisors is an integer number (19319896128).

Almost surely, 2^76536511481 is an apocalyptic number.

It is an amenable number.

76536511481 is a deficient number, since it is larger than the sum of its proper divisors (743073031).

76536511481 is a wasteful number, since it uses less digits than its factorization.

76536511481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743073030.

The product of its digits is 604800, while the sum is 47.

The spelling of 76536511481 in words is "seventy-six billion, five hundred thirty-six million, five hundred eleven thousand, four hundred eighty-one".