1047720110725 has 6 divisors (see below), whose sum is σ = 1299172937330. Its totient is φ = 838176088560.

The previous prime is 1047720110711. The next prime is 1047720110729. The reversal of 1047720110725 is 5270110277401.

It is a Cunningham number, because it is equal to 1023582²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 1047720110724 = 1^2 + 1023582^2 .

It is not a de Polignac number, because 1047720110725 - 2¹⁹ = 1047719586437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047720110729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20954402190 + ... + 20954402239.

Almost surely, 2^{1047720110725} is an apocalyptic number.

It is an amenable number.

1047720110725 is a deficient number, since it is larger than the sum of its proper divisors (251452826605).

1047720110725 is an equidigital number, since it uses as much as digits as its factorization.

1047720110725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41908804439 (or 41908804434 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 37.

The spelling of 1047720110725 in words is "one trillion, forty-seven billion, seven hundred twenty million, one hundred ten thousand, seven hundred twenty-five".