772493621328 has 560 divisors, whose sum is σ = 2647623041280. Its totient is φ = 215158809600.

The previous prime is 772493621311. The next prime is 772493621329. The reversal of 772493621328 is 823126394277.

It is a happy number.

772493621328 is a `hidden beast` number, since 7 + 7 + 2 + 4 + 9 + 3 + 621 + 3 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772493621329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 452014138 + ... + 452015846.

It is an arithmetic number, because the mean of its divisors is an integer number (4727898288).

Almost surely, 2^772493621328 is an apocalyptic number.

772493621328 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772493621328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323811520640).

772493621328 is an abundant number, since it is smaller than the sum of its proper divisors (1875129419952).

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

772493621328 is a wasteful number, since it uses less digits than its factorization.

772493621328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2009 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 772493621328 in words is "seven hundred seventy-two billion, four hundred ninety-three million, six hundred twenty-one thousand, three hundred twenty-eight".