84137263980 has 576 divisors, whose sum is σ = 306329651712. Its totient is φ = 17058263040.

The previous prime is 84137263979. The next prime is 84137264009. The reversal of 84137263980 is 8936273148.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 370648627 + ... + 370648853.

It is an arithmetic number, because the mean of its divisors is an integer number (531822312).

Almost surely, 2^84137263980 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 84137263980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153164825856).

84137263980 is an abundant number, since it is smaller than the sum of its proper divisors (222192387732).

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

84137263980 is a wasteful number, since it uses less digits than its factorization.

84137263980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 84137263980 in words is "eighty-four billion, one hundred thirty-seven million, two hundred sixty-three thousand, nine hundred eighty".