187021532086 has 16 divisors (see below), whose sum is σ = 281186000784. Its totient is φ = 93293079264.

The previous prime is 187021532083. The next prime is 187021532107. The reversal of 187021532086 is 680235120781.

It is a super-2 number, since 2×187021532086² (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 (187021532083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728885 + ... + 1833871.

It is an arithmetic number, because the mean of its divisors is an integer number (17574125049).

Almost surely, 2^187021532086 is an apocalyptic number.

187021532086 is a deficient number, since it is larger than the sum of its proper divisors (94164468698).

187021532086 is a wasteful number, since it uses less digits than its factorization.

187021532086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107055.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 187021532086 in words is "one hundred eighty-seven billion, twenty-one million, five hundred thirty-two thousand, eighty-six".