149117389898 has 16 divisors (see below), whose sum is σ = 231446565000. Its totient is φ = 71969812992.

The previous prime is 149117389877. The next prime is 149117389909. The reversal of 149117389898 is 898983711941.

It can be written as a sum of positive squares in 4 ways, for example, as 133636306969 + 15481082929 = 365563^2 + 124423^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82643 + ... + 552326.

Almost surely, 2^149117389898 is an apocalyptic number.

149117389898 is a deficient number, since it is larger than the sum of its proper divisors (82329175102).

149117389898 is a wasteful number, since it uses less digits than its factorization.

149117389898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639049.

The product of its digits is 31352832, while the sum is 68.

The spelling of 149117389898 in words is "one hundred forty-nine billion, one hundred seventeen million, three hundred eighty-nine thousand, eight hundred ninety-eight".