1580872493 has 2 divisors, whose sum is σ = 1580872494. Its totient is φ = 1580872492.

The previous prime is 1580872481. The next prime is 1580872507. The reversal of 1580872493 is 3942780851.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1569189769 + 11682724 = 39613^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1580872493 - 2¹⁸ = 1580610349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1580872193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790436246 + 790436247.

It is an arithmetic number, because the mean of its divisors is an integer number (790436247).

Almost surely, 2^1580872493 is an apocalyptic number.

It is an amenable number.

1580872493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1580872493 is an equidigital number, since it uses as much as digits as its factorization.

1580872493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 1580872493 is about 39760.1872857762. The cubic root of 1580872493 is about 1164.9276341304.

The spelling of 1580872493 in words is "one billion, five hundred eighty million, eight hundred seventy-two thousand, four hundred ninety-three".