47077947648 has 54 divisors (see below), whose sum is σ = 135737335734. Its totient is φ = 15692648448.

The previous prime is 47077947643. The next prime is 47077947691. The reversal of 47077947648 is 84674977074.

47077947648 is a `hidden beast` number, since 470 + 7 + 7 + 94 + 76 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28612399104 + 18465548544 = 169152^2 + 135888^2 .

It is not an unprimeable number, because it can be changed into a prime (47077947641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10214265 + ... + 10218872.

Almost surely, 2^47077947648 is an apocalyptic number.

47077947648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47077947648 is an abundant number, since it is smaller than the sum of its proper divisors (88659388086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47077947648 is a wasteful number, since it uses less digits than its factorization.

47077947648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20433159 (or 20433142 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 63.

The spelling of 47077947648 in words is "forty-seven billion, seventy-seven million, nine hundred forty-seven thousand, six hundred forty-eight".