772019545920 has 448 divisors, whose sum is σ = 3043903488000. Its totient is φ = 161780613120.

The previous prime is 772019545909. The next prime is 772019546021. The reversal of 772019545920 is 29545910277.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3860556 + ... + 4055604.

Almost surely, 2^772019545920 is an apocalyptic number.

772019545920 is a gapful number since it is divisible by the number (70) 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 772019545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521951744000).

772019545920 is an abundant number, since it is smaller than the sum of its proper divisors (2271883942080).

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

772019545920 is a wasteful number, since it uses less digits than its factorization.

772019545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195126 (or 195116 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 772019545920 in words is "seven hundred seventy-two billion, nineteen million, five hundred forty-five thousand, nine hundred twenty".