84783738240 has 192 divisors, whose sum is σ = 309990900960. Its totient is φ = 21279031296.

The previous prime is 84783738239. The next prime is 84783738271. The reversal of 84783738240 is 4283738748.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335004 + ... + 530843.

Almost surely, 2^84783738240 is an apocalyptic number.

84783738240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84783738240 is an abundant number, since it is smaller than the sum of its proper divisors (225207162720).

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

84783738240 is a wasteful number, since it uses less digits than its factorization.

84783738240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865889 (or 865874 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 84783738240 in words is "eighty-four billion, seven hundred eighty-three million, seven hundred thirty-eight thousand, two hundred forty".