1047999255840 has 144 divisors (see below), whose sum is σ = 3590546895936. Its totient is φ = 278352960000.

The previous prime is 1047999255803. The next prime is 1047999255847. The reversal of 1047999255840 is 485529997401.

1047999255840 is a `hidden beast` number, since 1 + 0 + 4 + 79 + 9 + 9 + 2 + 558 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1047999255847) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1088316 + ... + 1811195.

It is an arithmetic number, because the mean of its divisors is an integer number (24934353444).

Almost surely, 2^{1047999255840} is an apocalyptic number.

1047999255840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047999255840 is an abundant number, since it is smaller than the sum of its proper divisors (2542547640096).

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

1047999255840 is a wasteful number, since it uses less digits than its factorization.

1047999255840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899783 (or 2899772 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

It can be divided in two parts, 104799 and 9255840, that added together give a palindrome (9360639).

The spelling of 1047999255840 in words is "one trillion, forty-seven billion, nine hundred ninety-nine million, two hundred fifty-five thousand, eight hundred forty".