84380657452 has 192 divisors, whose sum is σ = 192033587200. Its totient is φ = 31551586560.

The previous prime is 84380657429. The next prime is 84380657461. The reversal of 84380657452 is 25475608348.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 84380657452.

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, 91817449 + ... + 91818367.

Almost surely, 2^84380657452 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 84380657452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96016793600).

84380657452 is an abundant number, since it is smaller than the sum of its proper divisors (107652929748).

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

84380657452 is a wasteful number, since it uses less digits than its factorization.

84380657452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 84380657452 in words is "eighty-four billion, three hundred eighty million, six hundred fifty-seven thousand, four hundred fifty-two".