1260128080 has 20 divisors (see below), whose sum is σ = 2929797972. Its totient is φ = 504051200.

The previous prime is 1260128063. The next prime is 1260128101. The reversal of 1260128080 is 808210621.

1260128080 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145636624 + 1114491456 = 12068^2 + 33384^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7875721 + ... + 7875880.

Almost surely, 2^1260128080 is an apocalyptic number.

1260128080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260128080 is an abundant number, since it is smaller than the sum of its proper divisors (1669669892).

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

1260128080 is a wasteful number, since it uses less digits than its factorization.

1260128080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15751614 (or 15751608 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1260128080 is about 35498.2827753682. The cubic root of 1260128080 is about 1080.1188940896.

The spelling of 1260128080 in words is "one billion, two hundred sixty million, one hundred twenty-eight thousand, eighty".