84693538540 has 216 divisors, whose sum is σ = 206181929520. Its totient is φ = 29045157120.

The previous prime is 84693538537. The next prime is 84693538541. The reversal of 84693538540 is 4583539648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84693538541) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 473148171 + ... + 473148349.

It is an arithmetic number, because the mean of its divisors is an integer number (954545970).

Almost surely, 2^84693538540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84693538540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103090964760).

84693538540 is an abundant number, since it is smaller than the sum of its proper divisors (121488390980).

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

84693538540 is a wasteful number, since it uses less digits than its factorization.

84693538540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 84693538540 in words is "eighty-four billion, six hundred ninety-three million, five hundred thirty-eight thousand, five hundred forty".