15075742673 has 4 divisors (see below), whose sum is σ = 15089337780. Its totient is φ = 15062147568.

The previous prime is 15075742609. The next prime is 15075742687. The reversal of 15075742673 is 37624757051.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6394721089 + 8681021584 = 79967^2 + 93172^2 .

It is a cyclic number.

It is not a de Polignac number, because 15075742673 - 2⁶ = 15075742609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15075742373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6795890 + ... + 6798107.

It is an arithmetic number, because the mean of its divisors is an integer number (3772334445).

Almost surely, 2^15075742673 is an apocalyptic number.

It is an amenable number.

15075742673 is a deficient number, since it is larger than the sum of its proper divisors (13595107).

15075742673 is a wasteful number, since it uses less digits than its factorization.

15075742673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13595106.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 15075742673 in words is "fifteen billion, seventy-five million, seven hundred forty-two thousand, six hundred seventy-three".