84192249840 has 40 divisors (see below), whose sum is σ = 260995975248. Its totient is φ = 22451266560.

The previous prime is 84192249809. The next prime is 84192249847. The reversal of 84192249840 is 4894229148.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84192249847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175400281 + ... + 175400760.

Almost surely, 2^84192249840 is an apocalyptic number.

84192249840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84192249840 is an abundant number, since it is smaller than the sum of its proper divisors (176803725408).

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

84192249840 is a wasteful number, since it uses less digits than its factorization.

84192249840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350801057 (or 350801051 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 84192249840 in words is "eighty-four billion, one hundred ninety-two million, two hundred forty-nine thousand, eight hundred forty".