190111949989 has 24 divisors (see below), whose sum is σ = 211304987712. Its totient is φ = 170864254080.

The previous prime is 190111949987. The next prime is 190111950013. The reversal of 190111949989 is 989949111091.

It is not a de Polignac number, because 190111949989 - 2¹ = 190111949987 is a prime.

It is a super-2 number, since 2×190111949989² (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 (190111949987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3458014 + ... + 3512560.

It is an arithmetic number, because the mean of its divisors is an integer number (8804374488).

Almost surely, 2^190111949989 is an apocalyptic number.

It is an amenable number.

190111949989 is a deficient number, since it is larger than the sum of its proper divisors (21193037723).

190111949989 is a wasteful number, since it uses less digits than its factorization.

190111949989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55117 (or 55104 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 61.

The spelling of 190111949989 in words is "one hundred ninety billion, one hundred eleven million, nine hundred forty-nine thousand, nine hundred eighty-nine".