15742887673 has 2 divisors, whose sum is σ = 15742887674. Its totient is φ = 15742887672.

The previous prime is 15742887631. The next prime is 15742887709. The reversal of 15742887673 is 37678824751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15389146809 + 353740864 = 124053^2 + 18808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15742887673 is a prime.

It is not a weakly prime, because it can be changed into another prime (15742887373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7871443836 + 7871443837.

It is an arithmetic number, because the mean of its divisors is an integer number (7871443837).

Almost surely, 2^15742887673 is an apocalyptic number.

It is an amenable number.

15742887673 is a deficient number, since it is larger than the sum of its proper divisors (1).

15742887673 is an equidigital number, since it uses as much as digits as its factorization.

15742887673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 58.

The spelling of 15742887673 in words is "fifteen billion, seven hundred forty-two million, eight hundred eighty-seven thousand, six hundred seventy-three".