47877621577 has 8 divisors (see below), whose sum is σ = 50701955616. Its totient is φ = 45054176832.

The previous prime is 47877621569. The next prime is 47877621581. The reversal of 47877621577 is 77512677874.

It is a happy number.

47877621577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47877621577 - 2³ = 47877621569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47877621587) 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, 109843 + ... + 328360.

It is an arithmetic number, because the mean of its divisors is an integer number (6337744452).

Almost surely, 2^47877621577 is an apocalyptic number.

It is an amenable number.

47877621577 is a deficient number, since it is larger than the sum of its proper divisors (2824334039).

47877621577 is a wasteful number, since it uses less digits than its factorization.

47877621577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444647.

The product of its digits is 32269440, while the sum is 61.

The spelling of 47877621577 in words is "forty-seven billion, eight hundred seventy-seven million, six hundred twenty-one thousand, five hundred seventy-seven".