149548891992 has 32 divisors (see below), whose sum is σ = 373901806080. Its totient is φ = 49845687200.

The previous prime is 149548891967. The next prime is 149548892027. The reversal of 149548891992 is 299198845941.

It is a congruent number.

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, 71617 + ... + 551567.

It is an arithmetic number, because the mean of its divisors is an integer number (11684431440).

Almost surely, 2^149548891992 is an apocalyptic number.

149548891992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149548891992 is an abundant number, since it is smaller than the sum of its proper divisors (224352914088).

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

149548891992 is a wasteful number, since it uses less digits than its factorization.

149548891992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492943 (or 492939 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 69.

The spelling of 149548891992 in words is "one hundred forty-nine billion, five hundred forty-eight million, eight hundred ninety-one thousand, nine hundred ninety-two".