47821161651 has 8 divisors (see below), whose sum is σ = 63872056464. Its totient is φ = 31825520640.

The previous prime is 47821161637. The next prime is 47821161743. The reversal of 47821161651 is 15616112874.

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

It is not a de Polignac number, because 47821161651 - 2⁹ = 47821161139 is a prime.

It is a super-3 number, since 3×47821161651³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (47821161601) 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, 13811430 + ... + 13814891.

It is an arithmetic number, because the mean of its divisors is an integer number (7984007058).

Almost surely, 2^47821161651 is an apocalyptic number.

47821161651 is a deficient number, since it is larger than the sum of its proper divisors (16050894813).

47821161651 is a wasteful number, since it uses less digits than its factorization.

47821161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27626901.

The product of its digits is 80640, while the sum is 42.

The spelling of 47821161651 in words is "forty-seven billion, eight hundred twenty-one million, one hundred sixty-one thousand, six hundred fifty-one".