801878486400 has 480 divisors, whose sum is σ = 2999714460600. Its totient is φ = 210900049920.

The previous prime is 801878486329. The next prime is 801878486407. The reversal of 801878486400 is 4684878108.

801878486400 is a `hidden beast` number, since 8 + 0 + 1 + 87 + 84 + 86 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801878486407) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 18900411 + ... + 18942789.

Almost surely, 2^801878486400 is an apocalyptic number.

801878486400 is a gapful number since it is divisible by the number (80) 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 801878486400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499857230300).

801878486400 is an abundant number, since it is smaller than the sum of its proper divisors (2197835974200).

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

801878486400 is a wasteful number, since it uses less digits than its factorization.

801878486400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42488 (or 42462 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 801878486400 in words is "eight hundred one billion, eight hundred seventy-eight million, four hundred eighty-six thousand, four hundred".