5581380526398 has 64 divisors (see below), whose sum is σ = 12888297676800. Its totient is φ = 1788251078880.

The previous prime is 5581380526363. The next prime is 5581380526417. The reversal of 5581380526398 is 8936250831855.

5581380526398 is a `hidden beast` number, since 5 + 5 + 8 + 13 + 8 + 0 + 526 + 3 + 98 = 666.

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 31 ways as a sum of consecutive naturals, for example, 7642038 + ... + 8340473.

It is an arithmetic number, because the mean of its divisors is an integer number (201379651200).

Almost surely, 2^{5581380526398} is an apocalyptic number.

5581380526398 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5581380526398 is an abundant number, since it is smaller than the sum of its proper divisors (7306917150402).

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

5581380526398 is a wasteful number, since it uses less digits than its factorization.

5581380526398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15982774 (or 15982768 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 63.

The spelling of 5581380526398 in words is "five trillion, five hundred eighty-one billion, three hundred eighty million, five hundred twenty-six thousand, three hundred ninety-eight".