149117389895 has 16 divisors (see below), whose sum is σ = 181664136288. Its totient is φ = 117479429760.

The previous prime is 149117389877. The next prime is 149117389909. The reversal of 149117389895 is 598983711941.

It is not a de Polignac number, because 149117389895 - 2⁸ = 149117389639 is a prime.

It is a super-2 number, since 2×149117389895² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129025 + ... + 1254165.

It is an arithmetic number, because the mean of its divisors is an integer number (11354008518).

Almost surely, 2^149117389895 is an apocalyptic number.

149117389895 is a deficient number, since it is larger than the sum of its proper divisors (32546746393).

149117389895 is a wasteful number, since it uses less digits than its factorization.

149117389895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128770.

The product of its digits is 19595520, while the sum is 65.

The spelling of 149117389895 in words is "one hundred forty-nine billion, one hundred seventeen million, three hundred eighty-nine thousand, eight hundred ninety-five".