47966687845 has 16 divisors (see below), whose sum is σ = 58535115120. Its totient is φ = 37723968000.

The previous prime is 47966687837. The next prime is 47966687939. The reversal of 47966687845 is 54878666974.

It can be written as a sum of positive squares in 8 ways, for example, as 18421547076 + 29545140769 = 135726^2 + 171887^2 .

It is not a de Polignac number, because 47966687845 - 2³ = 47966687837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538441 + ... + 621169.

It is an arithmetic number, because the mean of its divisors is an integer number (3658444695).

Almost surely, 2^47966687845 is an apocalyptic number.

It is an amenable number.

47966687845 is a deficient number, since it is larger than the sum of its proper divisors (10568427275).

47966687845 is a wasteful number, since it uses less digits than its factorization.

47966687845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84696.

The product of its digits is 487710720, while the sum is 70.

The spelling of 47966687845 in words is "forty-seven billion, nine hundred sixty-six million, six hundred eighty-seven thousand, eight hundred forty-five".