190497948081 has 16 divisors (see below), whose sum is σ = 290660092800. Its totient is φ = 108714405888.

The previous prime is 190497948019. The next prime is 190497948103. The reversal of 190497948081 is 180849794091.

It is not a de Polignac number, because 190497948081 - 2²¹ = 190495850929 is a prime.

It is a super-2 number, since 2×190497948081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190497944081) 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, 5881986 + ... + 5914283.

It is an arithmetic number, because the mean of its divisors is an integer number (18166255800).

Almost surely, 2^190497948081 is an apocalyptic number.

It is an amenable number.

190497948081 is a deficient number, since it is larger than the sum of its proper divisors (100162144719).

190497948081 is a wasteful number, since it uses less digits than its factorization.

190497948081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11797048.

The product of its (nonzero) digits is 5225472, while the sum is 60.

The spelling of 190497948081 in words is "one hundred ninety billion, four hundred ninety-seven million, nine hundred forty-eight thousand, eighty-one".