1538580740923 has 2 divisors, whose sum is σ = 1538580740924. Its totient is φ = 1538580740922.

The previous prime is 1538580740891. The next prime is 1538580740969. The reversal of 1538580740923 is 3290470858351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1538580740923 - 2⁵ = 1538580740891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1538580740993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769290370461 + 769290370462.

It is an arithmetic number, because the mean of its divisors is an integer number (769290370462).

Almost surely, 2^{1538580740923} is an apocalyptic number.

1538580740923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538580740923 is an equidigital number, since it uses as much as digits as its factorization.

1538580740923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 1538580740923 in words is "one trillion, five hundred thirty-eight billion, five hundred eighty million, seven hundred forty thousand, nine hundred twenty-three".