1358631671880 has 128 divisors (see below), whose sum is σ = 4659251788800. Its totient is φ = 310471978752.

The previous prime is 1358631671849. The next prime is 1358631671909. The reversal of 1358631671880 is 881761368531.

It is a self number, because there is not a number n which added to its sum of digits gives 1358631671880.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3458379 + ... + 3831141.

It is an arithmetic number, because the mean of its divisors is an integer number (36400404600).

Almost surely, 2^{1358631671880} is an apocalyptic number.

1358631671880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1358631671880 is an abundant number, since it is smaller than the sum of its proper divisors (3300620116920).

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

1358631671880 is a wasteful number, since it uses less digits than its factorization.

1358631671880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377123 (or 377119 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 1358631671880 in words is "one trillion, three hundred fifty-eight billion, six hundred thirty-one million, six hundred seventy-one thousand, eight hundred eighty".