7945545889153 has 2 divisors, whose sum is σ = 7945545889154. Its totient is φ = 7945545889152.

The previous prime is 7945545889147. The next prime is 7945545889189. The reversal of 7945545889153 is 3519885455497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7767636554304 + 177909334849 = 2787048^2 + 421793^2 .

It is a cyclic number.

It is not a de Polignac number, because 7945545889153 - 2²¹ = 7945543792001 is a prime.

It is a super-2 number, since 2×7945545889153² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7945545889103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972772944576 + 3972772944577.

It is an arithmetic number, because the mean of its divisors is an integer number (3972772944577).

Almost surely, 2^{7945545889153} is an apocalyptic number.

It is an amenable number.

7945545889153 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945545889153 is an equidigital number, since it uses as much as digits as its factorization.

7945545889153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640000, while the sum is 73.

The spelling of 7945545889153 in words is "seven trillion, nine hundred forty-five billion, five hundred forty-five million, eight hundred eighty-nine thousand, one hundred fifty-three".