87194720001 has 8 divisors (see below), whose sum is σ = 116269791840. Its totient is φ = 58124730752.

The previous prime is 87194719981. The next prime is 87194720003. The reversal of 87194720001 is 10002749178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87194720001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87194720003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230435 + ... + 1299368.

It is an arithmetic number, because the mean of its divisors is an integer number (14533723980).

Almost surely, 2^87194720001 is an apocalyptic number.

It is an amenable number.

87194720001 is a deficient number, since it is larger than the sum of its proper divisors (29075071839).

87194720001 is a wasteful number, since it uses less digits than its factorization.

87194720001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541295.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 87194720001 in words is "eighty-seven billion, one hundred ninety-four million, seven hundred twenty thousand, one".