154591139448 has 48 divisors (see below), whose sum is σ = 430000136280. Its totient is φ = 50137665984.

The previous prime is 154591139431. The next prime is 154591139471. The reversal of 154591139448 is 844931195451.

154591139448 is a `hidden beast` number, since 1 + 5 + 4 + 591 + 1 + 3 + 9 + 4 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 154591139394 and 154591139403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29012190 + ... + 29017517.

Almost surely, 2^154591139448 is an apocalyptic number.

154591139448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

154591139448 is an abundant number, since it is smaller than the sum of its proper divisors (275408996832).

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

154591139448 is a wasteful number, since it uses less digits than its factorization.

154591139448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58029756 (or 58029749 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 154591139448 in words is "one hundred fifty-four billion, five hundred ninety-one million, one hundred thirty-nine thousand, four hundred forty-eight".