87472837878 has 24 divisors (see below), whose sum is σ = 175571424744. Its totient is φ = 29053691520.

The previous prime is 87472837877. The next prime is 87472837931. The reversal of 87472837878 is 87873827478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87472837873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381450 + ... + 566082.

It is an arithmetic number, because the mean of its divisors is an integer number (7315476031).

Almost surely, 2^87472837878 is an apocalyptic number.

87472837878 is an abundant number, since it is smaller than the sum of its proper divisors (88098586866).

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

87472837878 is a wasteful number, since it uses less digits than its factorization.

87472837878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185200 (or 184919 counting only the distinct ones).

The product of its digits is 236027904, while the sum is 69.

The spelling of 87472837878 in words is "eighty-seven billion, four hundred seventy-two million, eight hundred thirty-seven thousand, eight hundred seventy-eight".