771025630272 has 112 divisors (see below), whose sum is σ = 2052245832000. Its totient is φ = 255467796480.

The previous prime is 771025630267. The next prime is 771025630279. The reversal of 771025630272 is 272036520177.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (771025630279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102132354 + ... + 102139902.

It is an arithmetic number, because the mean of its divisors is an integer number (18323623500).

Almost surely, 2^771025630272 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 771025630272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026122916000).

771025630272 is an abundant number, since it is smaller than the sum of its proper divisors (1281220201728).

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

771025630272 is a wasteful number, since it uses less digits than its factorization.

771025630272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684 (or 10674 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 771025630272 in words is "seven hundred seventy-one billion, twenty-five million, six hundred thirty thousand, two hundred seventy-two".