47877621567 has 4 divisors (see below), whose sum is σ = 63836828760. Its totient is φ = 31918414376.

The previous prime is 47877621563. The next prime is 47877621569. The reversal of 47877621567 is 76512677874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47877621567 - 2² = 47877621563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47877621567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47877621563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7979603592 + ... + 7979603597.

It is an arithmetic number, because the mean of its divisors is an integer number (15959207190).

Almost surely, 2^47877621567 is an apocalyptic number.

47877621567 is a deficient number, since it is larger than the sum of its proper divisors (15959207193).

47877621567 is a wasteful number, since it uses less digits than its factorization.

47877621567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15959207192.

The product of its digits is 27659520, while the sum is 60.

The spelling of 47877621567 in words is "forty-seven billion, eight hundred seventy-seven million, six hundred twenty-one thousand, five hundred sixty-seven".