13534450402450 has 24 divisors (see below), whose sum is σ = 25174174570020. Its totient is φ = 5413759339200.

The previous prime is 13534450402387. The next prime is 13534450402453. The reversal of 13534450402450 is 5420405443531.

It can be written as a sum of positive squares in 6 ways, for example, as 3625874813929 + 9908575588521 = 1904173^2 + 3147789^2 .

It is not an unprimeable number, because it can be changed into a prime (13534450402453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24924840 + ... + 25462060.

Almost surely, 2^{13534450402450} is an apocalyptic number.

13534450402450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13534450402450 is a deficient number, since it is larger than the sum of its proper divisors (11639724167570).

13534450402450 is a wasteful number, since it uses less digits than its factorization.

13534450402450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041102 (or 1041097 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 13534450402450 its reverse (5420405443531), we get a palindrome (18954855845981).

The spelling of 13534450402450 in words is "thirteen trillion, five hundred thirty-four billion, four hundred fifty million, four hundred two thousand, four hundred fifty".