47402881605 has 24 divisors (see below), whose sum is σ = 82716449400. Its totient is φ = 25111858560.

The previous prime is 47402881601. The next prime is 47402881637. The reversal of 47402881605 is 50618820474.

47402881605 is a `hidden beast` number, since 4 + 7 + 402 + 88 + 160 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5538038724 + 41864842881 = 74418^2 + 204609^2 .

It is not a de Polignac number, because 47402881605 - 2² = 47402881601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47402881601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3528186 + ... + 3541595.

It is an arithmetic number, because the mean of its divisors is an integer number (3446518725).

Almost surely, 2^47402881605 is an apocalyptic number.

47402881605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47402881605 is a deficient number, since it is larger than the sum of its proper divisors (35313567795).

47402881605 is a wasteful number, since it uses less digits than its factorization.

47402881605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7069941 (or 7069938 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 47402881605 in words is "forty-seven billion, four hundred two million, eight hundred eighty-one thousand, six hundred five".