48591947478 has 8 divisors (see below), whose sum is σ = 97183894968. Its totient is φ = 16197315824.

The previous prime is 48591947471. The next prime is 48591947519. The reversal of 48591947478 is 87474919584.

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

48591947478 is an admirable number.

It is a super-2 number, since 2×48591947478² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48591947471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4049328951 + ... + 4049328962.

It is an arithmetic number, because the mean of its divisors is an integer number (12147986871).

Almost surely, 2^48591947478 is an apocalyptic number.

48591947478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48591947478 is a wasteful number, since it uses less digits than its factorization.

48591947478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8098657918.

The product of its digits is 81285120, while the sum is 66.

The spelling of 48591947478 in words is "forty-eight billion, five hundred ninety-one million, nine hundred forty-seven thousand, four hundred seventy-eight".