48170357991 has 16 divisors (see below), whose sum is σ = 81558278400. Its totient is φ = 27525918744.

The previous prime is 48170357909. The next prime is 48170357999. The reversal of 48170357991 is 19975307184.

It is a happy number.

48170357991 is a `hidden beast` number, since 481 + 7 + 0 + 3 + 5 + 79 + 91 = 666.

It is not a de Polignac number, because 48170357991 - 2¹⁰ = 48170356967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48170357999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127434621 + ... + 127434998.

It is an arithmetic number, because the mean of its divisors is an integer number (5097392400).

Almost surely, 2^48170357991 is an apocalyptic number.

48170357991 is a deficient number, since it is larger than the sum of its proper divisors (33387920409).

48170357991 is a wasteful number, since it uses less digits than its factorization.

48170357991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254869635 (or 254869629 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 48170357991 in words is "forty-eight billion, one hundred seventy million, three hundred fifty-seven thousand, nine hundred ninety-one".