149492988289 has 12 divisors (see below), whose sum is σ = 159909612016. Its totient is φ = 139667846472.

The previous prime is 149492988283. The next prime is 149492988301. The reversal of 149492988289 is 982889294941.

It is not a de Polignac number, because 149492988289 - 2³¹ = 147345504641 is a prime.

It is a super-2 number, since 2×149492988289² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149492988283) 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, 3263247 + ... + 3308740.

Almost surely, 2^149492988289 is an apocalyptic number.

It is an amenable number.

149492988289 is a deficient number, since it is larger than the sum of its proper divisors (10416623727).

149492988289 is an equidigital number, since it uses as much as digits as its factorization.

149492988289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572076 (or 6572053 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 73.

The spelling of 149492988289 in words is "one hundred forty-nine billion, four hundred ninety-two million, nine hundred eighty-eight thousand, two hundred eighty-nine".