772436022020 has 96 divisors (see below), whose sum is σ = 1853364240000. Its totient is φ = 267891554304.

The previous prime is 772436022019. The next prime is 772436022031. The reversal of 772436022020 is 20220634277.

It is a super-2 number, since 2×772436022020² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2030471 + ... + 2380689.

It is an arithmetic number, because the mean of its divisors is an integer number (19305877500).

Almost surely, 2^772436022020 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 772436022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926682120000).

772436022020 is an abundant number, since it is smaller than the sum of its proper divisors (1080928217980).

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

772436022020 is a wasteful number, since it uses less digits than its factorization.

772436022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350757 (or 350755 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 772436022020 its reverse (20220634277), we get a palindrome (792656656297).

The spelling of 772436022020 in words is "seven hundred seventy-two billion, four hundred thirty-six million, twenty-two thousand, twenty".