187913536169090 has 32 divisors (see below), whose sum is σ = 340151164404480. Its totient is φ = 74742591571200.

The previous prime is 187913536169083. The next prime is 187913536169141. The reversal of 187913536169090 is 90961635319781.

It is a super-2 number, since 2×187913536169090² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 187913536169090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55240631 + ... + 58543610.

It is an arithmetic number, because the mean of its divisors is an integer number (10629723887640).

Almost surely, 2^{187913536169090} is an apocalyptic number.

187913536169090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187913536169090 is a deficient number, since it is larger than the sum of its proper divisors (152237628235390).

187913536169090 is a wasteful number, since it uses less digits than its factorization.

187913536169090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113785178.

The product of its (nonzero) digits is 66134880, while the sum is 68.

The spelling of 187913536169090 in words is "one hundred eighty-seven trillion, nine hundred thirteen billion, five hundred thirty-six million, one hundred sixty-nine thousand, ninety".