84180761398 has 16 divisors (see below), whose sum is σ = 133713556704. Its totient is φ = 39610120320.

The previous prime is 84180761377. The next prime is 84180761411. The reversal of 84180761398 is 89316708148.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188911 + ... + 451717.

It is an arithmetic number, because the mean of its divisors is an integer number (8357097294).

Almost surely, 2^84180761398 is an apocalyptic number.

84180761398 is a deficient number, since it is larger than the sum of its proper divisors (49532795306).

84180761398 is a wasteful number, since it uses less digits than its factorization.

84180761398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272247.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 84180761398 in words is "eighty-four billion, one hundred eighty million, seven hundred sixty-one thousand, three hundred ninety-eight".