47817786472 has 16 divisors (see below), whose sum is σ = 89991656100. Its totient is φ = 23820011520.

The previous prime is 47817786451. The next prime is 47817786493. The reversal of 47817786472 is 27468771874.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47817786451) and next prime (47817786493).

It can be written as a sum of positive squares in 2 ways, for example, as 47709917476 + 107868996 = 218426^2 + 10386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47817786472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11107929 + ... + 11112232.

Almost surely, 2^47817786472 is an apocalyptic number.

It is an amenable number.

47817786472 is a deficient number, since it is larger than the sum of its proper divisors (42173869628).

47817786472 is a wasteful number, since it uses less digits than its factorization.

47817786472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220436 (or 22220432 counting only the distinct ones).

The product of its digits is 29503488, while the sum is 61.

The spelling of 47817786472 in words is "forty-seven billion, eight hundred seventeen million, seven hundred eighty-six thousand, four hundred seventy-two".