1075807587997 has 2 divisors, whose sum is σ = 1075807587998. Its totient is φ = 1075807587996.

The previous prime is 1075807587973. The next prime is 1075807588007. The reversal of 1075807587997 is 7997857085701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 890898127876 + 184909460121 = 943874^2 + 430011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075807587997 - 2³⁹ = 526051774109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1075807587917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537903793998 + 537903793999.

It is an arithmetic number, because the mean of its divisors is an integer number (537903793999).

Almost surely, 2^{1075807587997} is an apocalyptic number.

It is an amenable number.

1075807587997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075807587997 is an equidigital number, since it uses as much as digits as its factorization.

1075807587997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311169600, while the sum is 73.

The spelling of 1075807587997 in words is "one trillion, seventy-five billion, eight hundred seven million, five hundred eighty-seven thousand, nine hundred ninety-seven".