20191471873848 has 128 divisors (see below), whose sum is σ = 64406608992000. Its totient is φ = 5796594783360.

The previous prime is 20191471873847. The next prime is 20191471873913. The reversal of 20191471873848 is 84837817419102.

20191471873848 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 1 + 471 + 87 + 3 + 84 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20191471873847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223588915 + ... + 223679202.

It is an arithmetic number, because the mean of its divisors is an integer number (503176632750).

Almost surely, 2^{20191471873848} is an apocalyptic number.

It is an amenable number.

20191471873848 is an abundant number, since it is smaller than the sum of its proper divisors (44215137118152).

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

20191471873848 is a wasteful number, since it uses less digits than its factorization.

20191471873848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447268162 (or 447268152 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 20191471873848 in words is "twenty trillion, one hundred ninety-one billion, four hundred seventy-one million, eight hundred seventy-three thousand, eight hundred forty-eight".