87500017801 has 6 divisors (see below), whose sum is σ = 101785735050. Its totient is φ = 75000015216.

The previous prime is 87500017799. The next prime is 87500017831. The reversal of 87500017801 is 10871000578.

It can be written as a sum of positive squares in only one way, i.e., 75776325625 + 11723692176 = 275275^2 + 108276^2 .

It is not a de Polignac number, because 87500017801 - 2¹ = 87500017799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87500017831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 892857276 + ... + 892857373.

It is an arithmetic number, because the mean of its divisors is an integer number (16964289175).

Almost surely, 2^87500017801 is an apocalyptic number.

It is an amenable number.

87500017801 is a deficient number, since it is larger than the sum of its proper divisors (14285717249).

87500017801 is a wasteful number, since it uses less digits than its factorization.

87500017801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785714663 (or 1785714656 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 37.

The spelling of 87500017801 in words is "eighty-seven billion, five hundred million, seventeen thousand, eight hundred one".