745677950669 has 2 divisors, whose sum is σ = 745677950670. Its totient is φ = 745677950668.

The previous prime is 745677950657. The next prime is 745677950683. The reversal of 745677950669 is 966059776547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745606345225 + 71605444 = 863485^2 + 8462^2 .

It is a cyclic number.

It is not a de Polignac number, because 745677950669 - 2¹⁶ = 745677885133 is a prime.

It is a super-2 number, since 2×745677950669² (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 (745677950629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372838975334 + 372838975335.

It is an arithmetic number, because the mean of its divisors is an integer number (372838975335).

Almost surely, 2^745677950669 is an apocalyptic number.

It is an amenable number.

745677950669 is a deficient number, since it is larger than the sum of its proper divisors (1).

745677950669 is an equidigital number, since it uses as much as digits as its factorization.

745677950669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600112800, while the sum is 71.

The spelling of 745677950669 in words is "seven hundred forty-five billion, six hundred seventy-seven million, nine hundred fifty thousand, six hundred sixty-nine".