772880055402 has 128 divisors (see below), whose sum is σ = 1954545868800. Its totient is φ = 198261063936.

The previous prime is 772880055401. The next prime is 772880055481. The reversal of 772880055402 is 204550088277.

It is not an unprimeable number, because it can be changed into a prime (772880055401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96137299 + ... + 96145337.

It is an arithmetic number, because the mean of its divisors is an integer number (15269889600).

Almost surely, 2^772880055402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772880055402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977272934400).

772880055402 is an abundant number, since it is smaller than the sum of its proper divisors (1181665813398).

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

772880055402 is a wasteful number, since it uses less digits than its factorization.

772880055402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12860.

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 772880055402 in words is "seven hundred seventy-two billion, eight hundred eighty million, fifty-five thousand, four hundred two".