87320002378 has 16 divisors (see below), whose sum is σ = 150350871744. Its totient is φ = 37257998400.

The previous prime is 87320002373. The next prime is 87320002421.

87320002378 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87320002378.

It is not an unprimeable number, because it can be changed into a prime (87320002373) 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, 13735023 + ... + 13741378.

It is an arithmetic number, because the mean of its divisors is an integer number (9396929484).

Almost surely, 2^87320002378 is an apocalyptic number.

87320002378 is a deficient number, since it is larger than the sum of its proper divisors (63030869366).

87320002378 is a wasteful number, since it uses less digits than its factorization.

87320002378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27476637.

The product of its (nonzero) digits is 112896, while the sum is 40.

It can be divided in two parts, 8732000 and 2378, that added together give a palindrome (8734378).

The spelling of 87320002378 in words is "eighty-seven billion, three hundred twenty million, two thousand, three hundred seventy-eight".