87982961394 has 16 divisors (see below), whose sum is σ = 179709879168. Its totient is φ = 28703661072.

The previous prime is 87982961393. The next prime is 87982961399. The reversal of 87982961394 is 49316928978.

It is not an unprimeable number, because it can be changed into a prime (87982961393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155997877 + ... + 155998440.

It is an arithmetic number, because the mean of its divisors is an integer number (11231867448).

Almost surely, 2^87982961394 is an apocalyptic number.

87982961394 is an abundant number, since it is smaller than the sum of its proper divisors (91726917774).

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

87982961394 is a wasteful number, since it uses less digits than its factorization.

87982961394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311996369.

The product of its digits is 47029248, while the sum is 66.

The spelling of 87982961394 in words is "eighty-seven billion, nine hundred eighty-two million, nine hundred sixty-one thousand, three hundred ninety-four".