15050421521440 has 48 divisors (see below), whose sum is σ = 35557157489112. Its totient is φ = 6020077748224.

The previous prime is 15050421521431. The next prime is 15050421521501. The reversal of 15050421521440 is 4412512405051.

It can be written as a sum of positive squares in 4 ways, for example, as 4077023258896 + 10973398262544 = 2019164^2 + 3312612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15050421521396 and 15050421521405.

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 7 ways as a sum of consecutive naturals, for example, 10473312 + ... + 11823328.

Almost surely, 2^{15050421521440} is an apocalyptic number.

15050421521440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15050421521440 is an abundant number, since it is smaller than the sum of its proper divisors (20506735967672).

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

15050421521440 is a wasteful number, since it uses less digits than its factorization.

15050421521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419709 (or 1419701 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 15050421521440 its reverse (4412512405051), we get a palindrome (19462933926491).

The spelling of 15050421521440 in words is "fifteen trillion, fifty billion, four hundred twenty-one million, five hundred twenty-one thousand, four hundred forty".