149383771398 has 32 divisors (see below), whose sum is σ = 332598729600. Its totient is φ = 49699371528.

The previous prime is 149383771393. The next prime is 149383771417. The reversal of 149383771398 is 893177383941.

149383771398 is a `hidden beast` number, since 1 + 493 + 8 + 3 + 7 + 7 + 139 + 8 = 666.

149383771398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149383771398² (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 (149383771393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2616468 + ... + 2672951.

It is an arithmetic number, because the mean of its divisors is an integer number (10393710300).

Almost surely, 2^149383771398 is an apocalyptic number.

149383771398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149383771398 is an abundant number, since it is smaller than the sum of its proper divisors (183214958202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149383771398 is a wasteful number, since it uses less digits than its factorization.

149383771398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289953 (or 5289947 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 149383771398 in words is "one hundred forty-nine billion, three hundred eighty-three million, seven hundred seventy-one thousand, three hundred ninety-eight".