84801776640 has 704 divisors, whose sum is σ = 321688571904. Its totient is φ = 18666749952.

The previous prime is 84801776603. The next prime is 84801776671. The reversal of 84801776640 is 4667710848.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490183594 + ... + 490183766.

Almost surely, 2^84801776640 is an apocalyptic number.

84801776640 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 84801776640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160844285952).

84801776640 is an abundant number, since it is smaller than the sum of its proper divisors (236886795264).

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

84801776640 is a wasteful number, since it uses less digits than its factorization.

84801776640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 84801776640 in words is "eighty-four billion, eight hundred one million, seven hundred seventy-six thousand, six hundred forty".