769842505501 has 2 divisors, whose sum is σ = 769842505502. Its totient is φ = 769842505500.

The previous prime is 769842505451. The next prime is 769842505507. The reversal of 769842505501 is 105505248967.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575017373401 + 194825132100 = 758299^2 + 441390^2 .

It is an emirp because it is prime and its reverse (105505248967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769842505501 - 2⁷ = 769842505373 is a prime.

It is a super-2 number, since 2×769842505501² (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 (769842505507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384921252750 + 384921252751.

It is an arithmetic number, because the mean of its divisors is an integer number (384921252751).

Almost surely, 2^769842505501 is an apocalyptic number.

It is an amenable number.

769842505501 is a deficient number, since it is larger than the sum of its proper divisors (1).

769842505501 is an equidigital number, since it uses as much as digits as its factorization.

769842505501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 769842505501 in words is "seven hundred sixty-nine billion, eight hundred forty-two million, five hundred five thousand, five hundred one".