87300172815 has 12 divisors (see below), whose sum is σ = 139682107464. Its totient is φ = 46559481856.

The previous prime is 87300172759. The next prime is 87300172849. The reversal of 87300172815 is 51827100378.

It is not a de Polignac number, because 87300172815 - 2¹² = 87300168719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1106191 + ... + 1182479.

It is an arithmetic number, because the mean of its divisors is an integer number (11640175622).

Almost surely, 2^87300172815 is an apocalyptic number.

87300172815 is a deficient number, since it is larger than the sum of its proper divisors (52381934649).

87300172815 is an frugal number, since it uses more digits than its factorization.

87300172815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152586 (or 76297 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 87300172815 in words is "eighty-seven billion, three hundred million, one hundred seventy-two thousand, eight hundred fifteen".