76727627641 has 4 divisors (see below), whose sum is σ = 87688717312. Its totient is φ = 65766537972.

The previous prime is 76727627623. The next prime is 76727627657. The reversal of 76727627641 is 14672672767.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14672672767 = 87697 ⋅167311.

It is a cyclic number.

It is not a de Polignac number, because 76727627641 - 2³¹ = 74580143993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76727627441) 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, 5480544825 + ... + 5480544838.

It is an arithmetic number, because the mean of its divisors is an integer number (21922179328).

Almost surely, 2^76727627641 is an apocalyptic number.

It is an amenable number.

76727627641 is a deficient number, since it is larger than the sum of its proper divisors (10961089671).

76727627641 is a wasteful number, since it uses less digits than its factorization.

76727627641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961089670.

The product of its digits is 8297856, while the sum is 55.

The spelling of 76727627641 in words is "seventy-six billion, seven hundred twenty-seven million, six hundred twenty-seven thousand, six hundred forty-one".