1572720672487 has 2 divisors, whose sum is σ = 1572720672488. Its totient is φ = 1572720672486.

The previous prime is 1572720672451. The next prime is 1572720672493. The reversal of 1572720672487 is 7842760272751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1572720672487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1572720676487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786360336243 + 786360336244.

It is an arithmetic number, because the mean of its divisors is an integer number (786360336244).

Almost surely, 2^{1572720672487} is an apocalyptic number.

1572720672487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1572720672487 is an equidigital number, since it uses as much as digits as its factorization.

1572720672487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18439680, while the sum is 58.

The spelling of 1572720672487 in words is "one trillion, five hundred seventy-two billion, seven hundred twenty million, six hundred seventy-two thousand, four hundred eighty-seven".