47077018405 has 4 divisors (see below), whose sum is σ = 56492422092. Its totient is φ = 37661614720.

The previous prime is 47077018379. The next prime is 47077018411. The reversal of 47077018405 is 50481077074.

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 18529198884 + 28547819521 = 136122^2 + 168961^2 .

It is not a de Polignac number, because 47077018405 - 2⁷ = 47077018277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4707701836 + ... + 4707701845.

It is an arithmetic number, because the mean of its divisors is an integer number (14123105523).

Almost surely, 2^47077018405 is an apocalyptic number.

It is an amenable number.

47077018405 is a deficient number, since it is larger than the sum of its proper divisors (9415403687).

47077018405 is an equidigital number, since it uses as much as digits as its factorization.

47077018405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415403686.

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 47077018405 in words is "forty-seven billion, seventy-seven million, eighteen thousand, four hundred five".