190918406436801 has 16 divisors (see below), whose sum is σ = 254922504049920. Its totient is φ = 127096631101440.

The previous prime is 190918406436799. The next prime is 190918406436841. The reversal of 190918406436801 is 108634604819091.

It is not a de Polignac number, because 190918406436801 - 2¹ = 190918406436799 is a prime.

It is a super-2 number, since 2×190918406436801² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190918406436841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98376321 + ... + 100298241.

It is an arithmetic number, because the mean of its divisors is an integer number (15932656503120).

Almost surely, 2^{190918406436801} is an apocalyptic number.

It is an amenable number.

190918406436801 is a deficient number, since it is larger than the sum of its proper divisors (64004097613119).

190918406436801 is a wasteful number, since it uses less digits than its factorization.

190918406436801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969336.

The product of its (nonzero) digits is 8957952, while the sum is 60.

The spelling of 190918406436801 in words is "one hundred ninety trillion, nine hundred eighteen billion, four hundred six million, four hundred thirty-six thousand, eight hundred one".