1075409129997 has 6 divisors (see below), whose sum is σ = 1553368743342. Its totient is φ = 716939419992.

The previous prime is 1075409129989. The next prime is 1075409130001. The reversal of 1075409129997 is 7999219045701.

It is a happy number.

1075409129997 is a `hidden beast` number, since 10 + 7 + 5 + 409 + 129 + 9 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 939763503396 + 135645626601 = 969414^2 + 368301^2 .

It is not a de Polignac number, because 1075409129997 - 2³ = 1075409129989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075409129947) 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, 59744951658 + ... + 59744951675.

It is an arithmetic number, because the mean of its divisors is an integer number (258894790557).

Almost surely, 2^{1075409129997} is an apocalyptic number.

It is an amenable number.

1075409129997 is a deficient number, since it is larger than the sum of its proper divisors (477959613345).

1075409129997 is a wasteful number, since it uses less digits than its factorization.

1075409129997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119489903339 (or 119489903336 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 63.

The spelling of 1075409129997 in words is "one trillion, seventy-five billion, four hundred nine million, one hundred twenty-nine thousand, nine hundred ninety-seven".