15746561004 has 12 divisors (see below), whose sum is σ = 36741975704. Its totient is φ = 5248853664.

The previous prime is 15746560993. The next prime is 15746561021. The reversal of 15746561004 is 40016564751.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 656106697 + ... + 656106720.

Almost surely, 2^15746561004 is an apocalyptic number.

It is an amenable number.

15746561004 is an abundant number, since it is smaller than the sum of its proper divisors (20995414700).

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

15746561004 is a wasteful number, since it uses less digits than its factorization.

15746561004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312213424 (or 1312213422 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 15746561004 in words is "fifteen billion, seven hundred forty-six million, five hundred sixty-one thousand, four".