15350143642 has 32 divisors (see below), whose sum is σ = 25366381200. Its totient is φ = 6934115328.

The previous prime is 15350143631. The next prime is 15350143687. The reversal of 15350143642 is 24634105351.

15350143642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 11191312521 + 4158831121 = 105789^2 + 64489^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 15350143598 and 15350143607.

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 15 ways as a sum of consecutive naturals, for example, 125584 + ... + 215572.

Almost surely, 2^15350143642 is an apocalyptic number.

15350143642 is a deficient number, since it is larger than the sum of its proper divisors (10016237558).

15350143642 is a wasteful number, since it uses less digits than its factorization.

15350143642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90210.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 15350143642 its reverse (24634105351), we get a palindrome (39984248993).

The spelling of 15350143642 in words is "fifteen billion, three hundred fifty million, one hundred forty-three thousand, six hundred forty-two".