97087537285 has 16 divisors (see below), whose sum is σ = 123392013552. Its totient is φ = 73081216000.

The previous prime is 97087537243. The next prime is 97087537291. The reversal of 97087537285 is 58273578079.

It can be written as a sum of positive squares in 8 ways, for example, as 2825028801 + 94262508484 = 53151^2 + 307022^2 .

It is not a de Polignac number, because 97087537285 - 2²⁵ = 97053982853 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 160275 + ... + 468895.

It is an arithmetic number, because the mean of its divisors is an integer number (7712000847).

Almost surely, 2^97087537285 is an apocalyptic number.

It is an amenable number.

97087537285 is a deficient number, since it is larger than the sum of its proper divisors (26304476267).

97087537285 is a wasteful number, since it uses less digits than its factorization.

97087537285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312344.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 97087537285 in words is "ninety-seven billion, eighty-seven million, five hundred thirty-seven thousand, two hundred eighty-five".