769224138481 has 4 divisors (see below), whose sum is σ = 772217228772. Its totient is φ = 766231048192.

The previous prime is 769224138467. The next prime is 769224138511. The reversal of 769224138481 is 184831422967.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 752453888481 + 16770250000 = 867441^2 + 129500^2 .

It is a cyclic number.

It is not a de Polignac number, because 769224138481 - 2³¹ = 767076654833 is a prime.

It is a super-2 number, since 2×769224138481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (769224138581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496544760 + ... + 1496545273.

It is an arithmetic number, because the mean of its divisors is an integer number (193054307193).

Almost surely, 2^769224138481 is an apocalyptic number.

It is an amenable number.

769224138481 is a deficient number, since it is larger than the sum of its proper divisors (2993090291).

769224138481 is a wasteful number, since it uses less digits than its factorization.

769224138481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993090290.

The product of its digits is 4644864, while the sum is 55.

The spelling of 769224138481 in words is "seven hundred sixty-nine billion, two hundred twenty-four million, one hundred thirty-eight thousand, four hundred eighty-one".