87387078378 has 32 divisors (see below), whose sum is σ = 177857289792. Its totient is φ = 28619049600.

The previous prime is 87387078293. The next prime is 87387078379.

87387078378 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87387078378² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87387078379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394603 + ... + 574878.

It is an arithmetic number, because the mean of its divisors is an integer number (5558040306).

Almost surely, 2^87387078378 is an apocalyptic number.

87387078378 is an abundant number, since it is smaller than the sum of its proper divisors (90470211414).

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

87387078378 is a wasteful number, since it uses less digits than its factorization.

87387078378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969750.

The product of its (nonzero) digits is 88510464, while the sum is 66.

The spelling of 87387078378 in words is "eighty-seven billion, three hundred eighty-seven million, seventy-eight thousand, three hundred seventy-eight".