76840041477 has 4 divisors (see below), whose sum is σ = 102453388640. Its totient is φ = 51226694316.

The previous prime is 76840041461. The next prime is 76840041491. The reversal of 76840041477 is 77414004867.

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 not a de Polignac number, because 76840041477 - 2⁴ = 76840041461 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 (76840041977) 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, 12806673577 + ... + 12806673582.

It is an arithmetic number, because the mean of its divisors is an integer number (25613347160).

Almost surely, 2^76840041477 is an apocalyptic number.

It is an amenable number.

76840041477 is a deficient number, since it is larger than the sum of its proper divisors (25613347163).

76840041477 is a wasteful number, since it uses less digits than its factorization.

76840041477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25613347162.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 76840041477 in words is "seventy-six billion, eight hundred forty million, forty-one thousand, four hundred seventy-seven".