1260131776536 has 256 divisors, whose sum is σ = 3354745996800. Its totient is φ = 394000588800.

The previous prime is 1260131776487. The next prime is 1260131776559. The reversal of 1260131776536 is 6356771310621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 583123296 + ... + 583125456.

It is an arithmetic number, because the mean of its divisors is an integer number (13104476550).

Almost surely, 2^{1260131776536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260131776536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677372998400).

1260131776536 is an abundant number, since it is smaller than the sum of its proper divisors (2094614220264).

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

1260131776536 is a wasteful number, since it uses less digits than its factorization.

1260131776536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 1260131776536 in words is "one trillion, two hundred sixty billion, one hundred thirty-one million, seven hundred seventy-six thousand, five hundred thirty-six".