154946649450 has 48 divisors (see below), whose sum is σ = 384303947616. Its totient is φ = 41315208000.

The previous prime is 154946649449. The next prime is 154946649463. The reversal of 154946649450 is 54946649451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1772469 + ... + 1857831.

It is an arithmetic number, because the mean of its divisors is an integer number (8006332242).

Almost surely, 2^154946649450 is an apocalyptic number.

154946649450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154946649450 is an abundant number, since it is smaller than the sum of its proper divisors (229357298166).

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

154946649450 is a wasteful number, since it uses less digits than its factorization.

154946649450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97479 (or 97474 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

Subtracting from 154946649450 its reverse (54946649451), we obtain a palindrome (99999999999).

The spelling of 154946649450 in words is "one hundred fifty-four billion, nine hundred forty-six million, six hundred forty-nine thousand, four hundred fifty".