1145867617725 has 12 divisors (see below), whose sum is σ = 1894501128096. Its totient is φ = 611129396080.

The previous prime is 1145867617723. The next prime is 1145867617733. The reversal of 1145867617725 is 5277167685411.

It is a happy number.

It is not a de Polignac number, because 1145867617725 - 2¹ = 1145867617723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145867617723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7639117377 + ... + 7639117526.

It is an arithmetic number, because the mean of its divisors is an integer number (157875094008).

Almost surely, 2^{1145867617725} is an apocalyptic number.

1145867617725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145867617725 is a deficient number, since it is larger than the sum of its proper divisors (748633510371).

1145867617725 is a wasteful number, since it uses less digits than its factorization.

1145867617725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15278234916 (or 15278234911 counting only the distinct ones).

The product of its digits is 19756800, while the sum is 60.

The spelling of 1145867617725 in words is "one trillion, one hundred forty-five billion, eight hundred sixty-seven million, six hundred seventeen thousand, seven hundred twenty-five".