1061456789725 has 12 divisors (see below), whose sum is σ = 1316751056244. Its totient is φ = 848814053120.

The previous prime is 1061456789717. The next prime is 1061456789749. The reversal of 1061456789725 is 5279876541601.

1061456789725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 131738509764 + 929718279961 = 362958^2 + 964219^2 .

It is not a de Polignac number, because 1061456789725 - 2³ = 1061456789717 is a prime.

It is a super-2 number, since 2×1061456789725² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722834 + ... + 8843683.

It is an arithmetic number, because the mean of its divisors is an integer number (109729254687).

Almost surely, 2^{1061456789725} is an apocalyptic number.

It is an amenable number.

1061456789725 is a deficient number, since it is larger than the sum of its proper divisors (255294266519).

1061456789725 is a wasteful number, since it uses less digits than its factorization.

1061456789725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17568944 (or 17568939 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 1061456789725 in words is "one trillion, sixty-one billion, four hundred fifty-six million, seven hundred eighty-nine thousand, seven hundred twenty-five".