87139343930 has 16 divisors (see below), whose sum is σ = 158836273920. Its totient is φ = 34414525392.

The previous prime is 87139343909. The next prime is 87139344001. The reversal of 87139343930 is 3934393178.

It is an unprimeable number.

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, 55150694 + ... + 55152273.

It is an arithmetic number, because the mean of its divisors is an integer number (9927267120).

Almost surely, 2^87139343930 is an apocalyptic number.

87139343930 is a deficient number, since it is larger than the sum of its proper divisors (71696929990).

87139343930 is a wasteful number, since it uses less digits than its factorization.

87139343930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110303053.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 87139343930 in words is "eighty-seven billion, one hundred thirty-nine million, three hundred forty-three thousand, nine hundred thirty".