149193438752 has 18 divisors (see below), whose sum is σ = 293728884309. Its totient is φ = 74595626880.

The previous prime is 149193438749. The next prime is 149193438787. The reversal of 149193438752 is 257834391941.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 131214919696 + 17978519056 = 362236^2 + 134084^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273124.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2150852 + ... + 2219132.

Almost surely, 2^149193438752 is an apocalyptic number.

It is an amenable number.

149193438752 is a deficient number, since it is larger than the sum of its proper divisors (144535445557).

149193438752 is an frugal number, since it uses more digits than its factorization.

149193438752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136572 (or 68283 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 56.

The spelling of 149193438752 in words is "one hundred forty-nine billion, one hundred ninety-three million, four hundred thirty-eight thousand, seven hundred fifty-two".