15840046798 has 4 divisors (see below), whose sum is σ = 23760070200. Its totient is φ = 7920023398.

The previous prime is 15840046793. The next prime is 15840046799. The reversal of 15840046798 is 89764004851.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15840046793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3960011698 + ... + 3960011701.

It is an arithmetic number, because the mean of its divisors is an integer number (5940017550).

Almost surely, 2^15840046798 is an apocalyptic number.

15840046798 is a deficient number, since it is larger than the sum of its proper divisors (7920023402).

15840046798 is an equidigital number, since it uses as much as digits as its factorization.

15840046798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920023401.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 15840046798 in words is "fifteen billion, eight hundred forty million, forty-six thousand, seven hundred ninety-eight".