87659722642 has 8 divisors (see below), whose sum is σ = 131496318000. Its totient is φ = 43827616644.

The previous prime is 87659722639. The next prime is 87659722663. The reversal of 87659722642 is 24622795678.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1073092 + ... + 1151887.

It is an arithmetic number, because the mean of its divisors is an integer number (16437039750).

Almost surely, 2^87659722642 is an apocalyptic number.

87659722642 is a deficient number, since it is larger than the sum of its proper divisors (43836595358).

87659722642 is a wasteful number, since it uses less digits than its factorization.

87659722642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244680.

The product of its digits is 20321280, while the sum is 58.

The spelling of 87659722642 in words is "eighty-seven billion, six hundred fifty-nine million, seven hundred twenty-two thousand, six hundred forty-two".