15890050042 has 32 divisors (see below), whose sum is σ = 25710022080. Its totient is φ = 7338397440.

The previous prime is 15890050039. The next prime is 15890050103. The reversal of 15890050042 is 24005009851.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599817 + ... + 625747.

It is an arithmetic number, because the mean of its divisors is an integer number (803438190).

Almost surely, 2^15890050042 is an apocalyptic number.

15890050042 is a deficient number, since it is larger than the sum of its proper divisors (9819972038).

15890050042 is a wasteful number, since it uses less digits than its factorization.

15890050042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26286.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 15890050042 its reverse (24005009851), we get a palindrome (39895059893).

The spelling of 15890050042 in words is "fifteen billion, eight hundred ninety million, fifty thousand, forty-two".