148438205438 has 8 divisors (see below), whose sum is σ = 222719288688. Its totient is φ = 74198442544.

The previous prime is 148438205387. The next prime is 148438205453. The reversal of 148438205438 is 834502834841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10321106 + ... + 10335477.

It is an arithmetic number, because the mean of its divisors is an integer number (27839911086).

Almost surely, 2^148438205438 is an apocalyptic number.

148438205438 is a deficient number, since it is larger than the sum of its proper divisors (74281083250).

148438205438 is a wasteful number, since it uses less digits than its factorization.

148438205438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20660178.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 148438205438 in words is "one hundred forty-eight billion, four hundred thirty-eight million, two hundred five thousand, four hundred thirty-eight".