745218156469 has 2 divisors, whose sum is σ = 745218156470. Its totient is φ = 745218156468.

The previous prime is 745218156451. The next prime is 745218156491. The reversal of 745218156469 is 964651812547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727673829444 + 17544327025 = 853038^2 + 132455^2 .

It is a cyclic number.

It is not a de Polignac number, because 745218156469 - 2¹⁷ = 745218025397 is a prime.

It is a super-2 number, since 2×745218156469² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745218156569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372609078234 + 372609078235.

It is an arithmetic number, because the mean of its divisors is an integer number (372609078235).

Almost surely, 2^745218156469 is an apocalyptic number.

It is an amenable number.

745218156469 is a deficient number, since it is larger than the sum of its proper divisors (1).

745218156469 is an equidigital number, since it uses as much as digits as its factorization.

745218156469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 58.

The spelling of 745218156469 in words is "seven hundred forty-five billion, two hundred eighteen million, one hundred fifty-six thousand, four hundred sixty-nine".