84012544550 has 72 divisors (see below), whose sum is σ = 175001955408. Its totient is φ = 29973486400.

The previous prime is 84012544541. The next prime is 84012544559. The reversal of 84012544550 is 5544521048.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84012544541) and next prime (84012544559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84012544559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189647 + ... + 451653.

It is an arithmetic number, because the mean of its divisors is an integer number (2430582714).

Almost surely, 2^84012544550 is an apocalyptic number.

84012544550 is an abundant number, since it is smaller than the sum of its proper divisors (90989410858).

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

84012544550 is a wasteful number, since it uses less digits than its factorization.

84012544550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262094 (or 262078 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 38.

The spelling of 84012544550 in words is "eighty-four billion, twelve million, five hundred forty-four thousand, five hundred fifty".