772864477871 has 8 divisors (see below), whose sum is σ = 777275007600. Its totient is φ = 768455493120.

The previous prime is 772864477849. The next prime is 772864477919. The reversal of 772864477871 is 178774468277.

It is a happy number.

772864477871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 772864477871 - 2¹⁰ = 772864476847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772864477471) 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, 624620 + ... + 1391358.

It is an arithmetic number, because the mean of its divisors is an integer number (97159375950).

Almost surely, 2^772864477871 is an apocalyptic number.

772864477871 is a deficient number, since it is larger than the sum of its proper divisors (4410529729).

772864477871 is a wasteful number, since it uses less digits than its factorization.

772864477871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772489.

The product of its digits is 206524416, while the sum is 68.

The spelling of 772864477871 in words is "seven hundred seventy-two billion, eight hundred sixty-four million, four hundred seventy-seven thousand, eight hundred seventy-one".