84067754880 has 128 divisors (see below), whose sum is σ = 269765316000. Its totient is φ = 22267535360.

The previous prime is 84067754879. The next prime is 84067754887. The reversal of 84067754880 is 8845776048.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 84067754880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84067754887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139150 + ... + 433010.

Almost surely, 2^84067754880 is an apocalyptic number.

84067754880 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 84067754880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134882658000).

84067754880 is an abundant number, since it is smaller than the sum of its proper divisors (185697561120).

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

84067754880 is a wasteful number, since it uses less digits than its factorization.

84067754880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294032 (or 294020 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 84067754880 in words is "eighty-four billion, sixty-seven million, seven hundred fifty-four thousand, eight hundred eighty".