7385551174489 has 2 divisors, whose sum is σ = 7385551174490. Its totient is φ = 7385551174488.

The previous prime is 7385551174403. The next prime is 7385551174517. The reversal of 7385551174489 is 9844711555837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3852222693264 + 3533328481225 = 1962708^2 + 1879715^2 .

It is a cyclic number.

It is not a de Polignac number, because 7385551174489 - 2⁴¹ = 5186527918937 is a prime.

It is a super-2 number, since 2×7385551174489² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7385551124489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3692775587244 + 3692775587245.

It is an arithmetic number, because the mean of its divisors is an integer number (3692775587245).

Almost surely, 2^{7385551174489} is an apocalyptic number.

It is an amenable number.

7385551174489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7385551174489 is an equidigital number, since it uses as much as digits as its factorization.

7385551174489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344000, while the sum is 67.

The spelling of 7385551174489 in words is "seven trillion, three hundred eighty-five billion, five hundred fifty-one million, one hundred seventy-four thousand, four hundred eighty-nine".