87184400045878 has 8 divisors (see below), whose sum is σ = 130825452000672. Its totient is φ = 43575916045656.

The previous prime is 87184400045837. The next prime is 87184400045879. The reversal of 87184400045878 is 87854000448178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87184400045878² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87184400045879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8141981950 + ... + 8141992657.

It is an arithmetic number, because the mean of its divisors is an integer number (16353181500084).

Almost surely, 2^{87184400045878} is an apocalyptic number.

87184400045878 is a deficient number, since it is larger than the sum of its proper divisors (43641051954794).

87184400045878 is a wasteful number, since it uses less digits than its factorization.

87184400045878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16283977286.

The product of its (nonzero) digits is 64225280, while the sum is 64.

The spelling of 87184400045878 in words is "eighty-seven trillion, one hundred eighty-four billion, four hundred million, forty-five thousand, eight hundred seventy-eight".