771227480448 has 192 divisors, whose sum is σ = 2261859771600. Its totient is φ = 252191232000.

The previous prime is 771227480411. The next prime is 771227480459. The reversal of 771227480448 is 844084722177.

771227480448 is a `hidden beast` number, since 7 + 7 + 122 + 74 + 8 + 0 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 771227480394 and 771227480403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12651963 + ... + 12712773.

Almost surely, 2^771227480448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 771227480448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130929885800).

771227480448 is an abundant number, since it is smaller than the sum of its proper divisors (1490632291152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

771227480448 is a wasteful number, since it uses less digits than its factorization.

771227480448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61041 (or 61026 counting only the distinct ones).

The product of its (nonzero) digits is 5619712, while the sum is 54.

The spelling of 771227480448 in words is "seven hundred seventy-one billion, two hundred twenty-seven million, four hundred eighty thousand, four hundred forty-eight".