1255831780888 has 16 divisors (see below), whose sum is σ = 2363846789880. Its totient is φ = 625472636928.

The previous prime is 1255831780837. The next prime is 1255831780891. The reversal of 1255831780888 is 8880871385521.

It is a super-2 number, since 2×1255831780888² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305404506 + ... + 305408617.

Almost surely, 2^{1255831780888} is an apocalyptic number.

It is an amenable number.

1255831780888 is a deficient number, since it is larger than the sum of its proper divisors (1108015008992).

1255831780888 is a wasteful number, since it uses less digits than its factorization.

1255831780888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610813386 (or 610813382 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 64.

The spelling of 1255831780888 in words is "one trillion, two hundred fifty-five billion, eight hundred thirty-one million, seven hundred eighty thousand, eight hundred eighty-eight".