87337207181 has 16 divisors (see below), whose sum is σ = 100658807424. Its totient is φ = 74228949504.

The previous prime is 87337207159. The next prime is 87337207193. The reversal of 87337207181 is 18170273378.

It is a cyclic number.

It is not a de Polignac number, because 87337207181 - 2⁶ = 87337207117 is a prime.

It is a super-2 number, since 2×87337207181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87337207151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405665 + ... + 582441.

It is an arithmetic number, because the mean of its divisors is an integer number (6291175464).

Almost surely, 2^87337207181 is an apocalyptic number.

It is an amenable number.

87337207181 is a deficient number, since it is larger than the sum of its proper divisors (13321600243).

87337207181 is a wasteful number, since it uses less digits than its factorization.

87337207181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177380.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 87337207181 in words is "eighty-seven billion, three hundred thirty-seven million, two hundred seven thousand, one hundred eighty-one".