769353412221 has 8 divisors (see below), whose sum is σ = 1139782832960. Its totient is φ = 512902274796.

The previous prime is 769353412193. The next prime is 769353412259. The reversal of 769353412221 is 122214353967.

It is a happy number.

769353412221 is a `hidden beast` number, since 7 + 6 + 9 + 3 + 5 + 3 + 412 + 221 = 666.

769353412221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 769353412221 - 2⁵ = 769353412189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769353412291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14247285385 + ... + 14247285438.

It is an arithmetic number, because the mean of its divisors is an integer number (142472854120).

Almost surely, 2^769353412221 is an apocalyptic number.

It is an amenable number.

769353412221 is a deficient number, since it is larger than the sum of its proper divisors (370429420739).

769353412221 is a wasteful number, since it uses less digits than its factorization.

769353412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28494570832 (or 28494570826 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 769353412221 in words is "seven hundred sixty-nine billion, three hundred fifty-three million, four hundred twelve thousand, two hundred twenty-one".