804212619840 has 672 divisors, whose sum is σ = 3352966396416. Its totient is φ = 172939345920.

The previous prime is 804212619823. The next prime is 804212619857. The reversal of 804212619840 is 48916212408.

804212619840 is a `hidden beast` number, since 8 + 0 + 4 + 21 + 2 + 619 + 8 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (804212619823) and next prime (804212619857).

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28270264 + ... + 28298696.

It is an arithmetic number, because the mean of its divisors is an integer number (4989533328).

Almost surely, 2^804212619840 is an apocalyptic number.

804212619840 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 804212619840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676483198208).

804212619840 is an abundant number, since it is smaller than the sum of its proper divisors (2548753776576).

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

804212619840 is a wasteful number, since it uses less digits than its factorization.

804212619840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28547 (or 28534 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 804212619840 in words is "eight hundred four billion, two hundred twelve million, six hundred nineteen thousand, eight hundred forty".