1572720672489 has 16 divisors (see below), whose sum is σ = 2165167087104. Its totient is φ = 1014394924800.

The previous prime is 1572720672487. The next prime is 1572720672493. The reversal of 1572720672489 is 9842760272751.

It is not a de Polignac number, because 1572720672489 - 2¹ = 1572720672487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1572720672487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1836192 + ... + 2552849.

It is an arithmetic number, because the mean of its divisors is an integer number (135322942944).

Almost surely, 2^{1572720672489} is an apocalyptic number.

It is an amenable number.

1572720672489 is a deficient number, since it is larger than the sum of its proper divisors (592446414615).

1572720672489 is a wasteful number, since it uses less digits than its factorization.

1572720672489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392928.

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 1572720672489 in words is "one trillion, five hundred seventy-two billion, seven hundred twenty million, six hundred seventy-two thousand, four hundred eighty-nine".