773848189788129 has 49 divisors (see below), whose sum is σ = 1171843939852951. Its totient is φ = 510790884348600.

The previous prime is 773848189788053. The next prime is 773848189788133. The reversal of 773848189788129 is 921887981848377.

The square root of 773848189788129 is 27818127.

The cubic root of 773848189788129 is 91809.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

773848189788129 is a `hidden beast` number, since 7 + 7 + 38 + 481 + 8 + 9 + 7 + 88 + 12 + 9 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 528561848763729 + 245286341024400 = 22990473^2 + 15661620^2 .

It is not a de Polignac number, because 773848189788129 - 2³¹ = 773846042304481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773848189788169) by changing a digit.

It is a polite number, since it can be written in 48 ways as a sum of consecutive naturals, for example, 7661863265179 + ... + 7661863265279.

Almost surely, 2^{773848189788129} is an apocalyptic number.

773848189788129 is the 27818127-th square number.

773848189788129 is the 13909064-th centered octagonal number.

It is an amenable number.

773848189788129 is a deficient number, since it is larger than the sum of its proper divisors (397995750064822).

773848189788129 is an frugal number, since it uses more digits than its factorization.

773848189788129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 104 counting only the distinct ones).

The product of its digits is 21849440256, while the sum is 90.

The spelling of 773848189788129 in words is "seven hundred seventy-three trillion, eight hundred forty-eight billion, one hundred eighty-nine million, seven hundred eighty-eight thousand, one hundred twenty-nine".