13545021450 has 48 divisors (see below), whose sum is σ = 34064801856. Its totient is φ = 3561129600.

The previous prime is 13545021403. The next prime is 13545021467. The reversal of 13545021450 is 5412054531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 625267 + ... + 646566.

It is an arithmetic number, because the mean of its divisors is an integer number (709683372).

Almost surely, 2^13545021450 is an apocalyptic number.

13545021450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13545021450 is an abundant number, since it is smaller than the sum of its proper divisors (20519780406).

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

13545021450 is a wasteful number, since it uses less digits than its factorization.

13545021450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271919 (or 1271914 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13545021450 its reverse (5412054531), we get a palindrome (18957075981).

The spelling of 13545021450 in words is "thirteen billion, five hundred forty-five million, twenty-one thousand, four hundred fifty".