47777761471 has 16 divisors (see below), whose sum is σ = 54425963520. Its totient is φ = 41516370720.

The previous prime is 47777761457. The next prime is 47777761531. The reversal of 47777761471 is 17416777774.

It is not a de Polignac number, because 47777761471 - 2²¹ = 47775664319 is a prime.

It is a super-3 number, since 3×47777761471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47777761771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293665 + ... + 426373.

It is an arithmetic number, because the mean of its divisors is an integer number (3401622720).

Almost surely, 2^47777761471 is an apocalyptic number.

47777761471 is a deficient number, since it is larger than the sum of its proper divisors (6648202049).

47777761471 is a wasteful number, since it uses less digits than its factorization.

47777761471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134166.

The product of its digits is 11294304, while the sum is 58.

The spelling of 47777761471 in words is "forty-seven billion, seven hundred seventy-seven million, seven hundred sixty-one thousand, four hundred seventy-one".