87145207726 has 16 divisors (see below), whose sum is σ = 132222813696. Its totient is φ = 43073414496.

The previous prime is 87145207703. The next prime is 87145207753. The reversal of 87145207726 is 62770254178.

It is a self number, because there is not a number n which added to its sum of digits gives 87145207726.

It is a congruent number.

It is an unprimeable number.

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, 548941 + ... + 689656.

It is an arithmetic number, because the mean of its divisors is an integer number (8263925856).

Almost surely, 2^87145207726 is an apocalyptic number.

87145207726 is a deficient number, since it is larger than the sum of its proper divisors (45077605970).

87145207726 is a wasteful number, since it uses less digits than its factorization.

87145207726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239003.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 87145207726 in words is "eighty-seven billion, one hundred forty-five million, two hundred seven thousand, seven hundred twenty-six".