1871400520080 has 480 divisors, whose sum is σ = 7743383391744. Its totient is φ = 394423271424.

The previous prime is 1871400520079. The next prime is 1871400520091. The reversal of 1871400520080 is 800250041781.

1871400520080 is a `hidden beast` number, since 18 + 7 + 1 + 40 + 0 + 520 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63343072 + ... + 63372608.

Almost surely, 2^{1871400520080} is an apocalyptic number.

1871400520080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1871400520080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3871691695872).

1871400520080 is an abundant number, since it is smaller than the sum of its proper divisors (5871982871664).

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

1871400520080 is a wasteful number, since it uses less digits than its factorization.

1871400520080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30543 (or 30534 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 1871400520080 in words is "one trillion, eight hundred seventy-one billion, four hundred million, five hundred twenty thousand, eighty".