1303780495428 has 36 divisors (see below), whose sum is σ = 3295714158828. Its totient is φ = 434587327680.

The previous prime is 1303780495363. The next prime is 1303780495453. The reversal of 1303780495428 is 8245940873031.

It is a happy number.

1303780495428 is a `hidden beast` number, since 1 + 3 + 0 + 37 + 80 + 495 + 42 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 813979275264 + 489801220164 = 902208^2 + 699858^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1303780495428² (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 11 ways as a sum of consecutive naturals, for example, 2816950 + ... + 3246962.

It is an arithmetic number, because the mean of its divisors is an integer number (91547615523).

Almost surely, 2^{1303780495428} is an apocalyptic number.

1303780495428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1303780495428 is an abundant number, since it is smaller than the sum of its proper divisors (1991933663400).

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

1303780495428 is a wasteful number, since it uses less digits than its factorization.

1303780495428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514244 (or 514239 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1303780495428 in words is "one trillion, three hundred three billion, seven hundred eighty million, four hundred ninety-five thousand, four hundred twenty-eight".