1268173080 has 192 divisors, whose sum is σ = 4345436160. Its totient is φ = 320120064.

The previous prime is 1268173063. The next prime is 1268173087. The reversal of 1268173080 is 803718621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268173087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 852097 + ... + 853583.

It is an arithmetic number, because the mean of its divisors is an integer number (22632480).

Almost surely, 2^1268173080 is an apocalyptic number.

1268173080 is a gapful number since it is divisible by the number (10) 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 1268173080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2172718080).

1268173080 is an abundant number, since it is smaller than the sum of its proper divisors (3077263080).

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

1268173080 is a wasteful number, since it uses less digits than its factorization.

1268173080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1268173080 is about 35611.4178319258. The cubic root of 1268173080 is about 1082.4126105744.

The spelling of 1268173080 in words is "one billion, two hundred sixty-eight million, one hundred seventy-three thousand, eighty".