84366553780 has 12 divisors (see below), whose sum is σ = 177169762980. Its totient is φ = 33746621504.

The previous prime is 84366553721. The next prime is 84366553801. The reversal of 84366553780 is 8735566348.

It can be written as a sum of positive squares in 2 ways, for example, as 27701607844 + 56664945936 = 166438^2 + 238044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2109163825 + ... + 2109163864.

It is an arithmetic number, because the mean of its divisors is an integer number (14764146915).

Almost surely, 2^84366553780 is an apocalyptic number.

It is an amenable number.

84366553780 is an abundant number, since it is smaller than the sum of its proper divisors (92803209200).

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

84366553780 is a wasteful number, since it uses less digits than its factorization.

84366553780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218327698 (or 4218327696 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 84366553780 in words is "eighty-four billion, three hundred sixty-six million, five hundred fifty-three thousand, seven hundred eighty".