5561391700028 has 24 divisors (see below), whose sum is σ = 9778574005200. Its totient is φ = 2767527002880.

The previous prime is 5561391700009. The next prime is 5561391700043. The reversal of 5561391700028 is 8200071931655.

It is a super-2 number, since 2×5561391700028² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59951 + ... + 3335622.

It is an arithmetic number, because the mean of its divisors is an integer number (407440583550).

Almost surely, 2^{5561391700028} is an apocalyptic number.

It is an amenable number.

5561391700028 is a deficient number, since it is larger than the sum of its proper divisors (4217182305172).

5561391700028 is a wasteful number, since it uses less digits than its factorization.

5561391700028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397517 (or 3397515 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 5561391700028 in words is "five trillion, five hundred sixty-one billion, three hundred ninety-one million, seven hundred thousand, twenty-eight".