154217712450 has 48 divisors (see below), whose sum is σ = 383084070336. Its totient is φ = 41057611200.

The previous prime is 154217712403. The next prime is 154217712457. The reversal of 154217712450 is 54217712451.

It is a junction number, because it is equal to n+sod(n) for n = 154217712399 and 154217712408.

It is not an unprimeable number, because it can be changed into a prime (154217712457) by changing a digit.

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, 746646 + ... + 930545.

It is an arithmetic number, because the mean of its divisors is an integer number (7980918132).

Almost surely, 2^154217712450 is an apocalyptic number.

154217712450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154217712450 is an abundant number, since it is smaller than the sum of its proper divisors (228866357886).

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

154217712450 is a wasteful number, since it uses less digits than its factorization.

154217712450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677819 (or 1677814 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

Subtracting from 154217712450 its reverse (54217712451), we obtain a palindrome (99999999999).

The spelling of 154217712450 in words is "one hundred fifty-four billion, two hundred seventeen million, seven hundred twelve thousand, four hundred fifty".