47016620477 has 2 divisors, whose sum is σ = 47016620478. Its totient is φ = 47016620476.

The previous prime is 47016620473. The next prime is 47016620557. The reversal of 47016620477 is 77402661074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30678923716 + 16337696761 = 175154^2 + 127819^2 .

It is a cyclic number.

It is not a de Polignac number, because 47016620477 - 2² = 47016620473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47016620473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23508310238 + 23508310239.

It is an arithmetic number, because the mean of its divisors is an integer number (23508310239).

Almost surely, 2^47016620477 is an apocalyptic number.

It is an amenable number.

47016620477 is a deficient number, since it is larger than the sum of its proper divisors (1).

47016620477 is an equidigital number, since it uses as much as digits as its factorization.

47016620477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 47016620477 in words is "forty-seven billion, sixteen million, six hundred twenty thousand, four hundred seventy-seven".