180049101491 has 12 divisors (see below), whose sum is σ = 209832048000. Its totient is φ = 154042514640.

The previous prime is 180049101473. The next prime is 180049101493. The reversal of 180049101491 is 194101940081.

It is a happy number.

It is not a de Polignac number, because 180049101491 - 2³⁴ = 162869232307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180049101493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3369491 + ... + 3422508.

It is an arithmetic number, because the mean of its divisors is an integer number (17486004000).

Almost surely, 2^180049101491 is an apocalyptic number.

180049101491 is a deficient number, since it is larger than the sum of its proper divisors (29782946509).

180049101491 is an equidigital number, since it uses as much as digits as its factorization.

180049101491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792554 (or 6792547 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 180049101491 in words is "one hundred eighty billion, forty-nine million, one hundred one thousand, four hundred ninety-one".