47801516851 has 4 divisors (see below), whose sum is σ = 52147109304. Its totient is φ = 43455924400.

The previous prime is 47801516839. The next prime is 47801516857. The reversal of 47801516851 is 15861510874.

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 47801516851 - 2³³ = 39211582259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47801516857) 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, 2172796210 + ... + 2172796231.

It is an arithmetic number, because the mean of its divisors is an integer number (13036777326).

Almost surely, 2^47801516851 is an apocalyptic number.

47801516851 is a deficient number, since it is larger than the sum of its proper divisors (4345592453).

47801516851 is a wasteful number, since it uses less digits than its factorization.

47801516851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345592452.

The product of its (nonzero) digits is 268800, while the sum is 46.

The spelling of 47801516851 in words is "forty-seven billion, eight hundred one million, five hundred sixteen thousand, eight hundred fifty-one".