47711472077 has 4 divisors (see below), whose sum is σ = 50518029276. Its totient is φ = 44904914880.

The previous prime is 47711472073. The next prime is 47711472101. The reversal of 47711472077 is 77027411774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37055865001 + 10655607076 = 192499^2 + 103226^2 .

It is a cyclic number.

It is not a de Polignac number, because 47711472077 - 2² = 47711472073 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 (47711472073) 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, 1403278574 + ... + 1403278607.

It is an arithmetic number, because the mean of its divisors is an integer number (12629507319).

Almost surely, 2^47711472077 is an apocalyptic number.

It is an amenable number.

47711472077 is a deficient number, since it is larger than the sum of its proper divisors (2806557199).

47711472077 is a wasteful number, since it uses less digits than its factorization.

47711472077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806557198.

The product of its (nonzero) digits is 537824, while the sum is 47.

The spelling of 47711472077 in words is "forty-seven billion, seven hundred eleven million, four hundred seventy-two thousand, seventy-seven".