47418394977 has 8 divisors (see below), whose sum is σ = 70249474080. Its totient is φ = 31612263300.

The previous prime is 47418394963. The next prime is 47418394993. The reversal of 47418394977 is 77949381474.

47418394977 is a `hidden beast` number, since 47 + 418 + 3 + 94 + 97 + 7 = 666.

It is not a de Polignac number, because 47418394977 - 2⁸ = 47418394721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47418394937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878118399 + ... + 878118452.

It is an arithmetic number, because the mean of its divisors is an integer number (8781184260).

Almost surely, 2^47418394977 is an apocalyptic number.

It is an amenable number.

47418394977 is a deficient number, since it is larger than the sum of its proper divisors (22831079103).

47418394977 is a wasteful number, since it uses less digits than its factorization.

47418394977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756236860 (or 1756236854 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The spelling of 47418394977 in words is "forty-seven billion, four hundred eighteen million, three hundred ninety-four thousand, nine hundred seventy-seven".