245047495669 has 2 divisors, whose sum is σ = 245047495670. Its totient is φ = 245047495668.

The previous prime is 245047495663. The next prime is 245047495681. The reversal of 245047495669 is 966594740542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165923431569 + 79124064100 = 407337^2 + 281290^2 .

It is a cyclic number.

It is not a de Polignac number, because 245047495669 - 2⁷ = 245047495541 is a prime.

It is a super-2 number, since 2×245047495669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245047495663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122523747834 + 122523747835.

It is an arithmetic number, because the mean of its divisors is an integer number (122523747835).

Almost surely, 2^245047495669 is an apocalyptic number.

It is an amenable number.

245047495669 is a deficient number, since it is larger than the sum of its proper divisors (1).

245047495669 is an equidigital number, since it uses as much as digits as its factorization.

245047495669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 245047495669 in words is "two hundred forty-five billion, forty-seven million, four hundred ninety-five thousand, six hundred sixty-nine".