5621590187649 has 32 divisors (see below), whose sum is σ = 8856989904000. Its totient is φ = 3513875116032.

The previous prime is 5621590187531. The next prime is 5621590187659. The reversal of 5621590187649 is 9467810951265.

5621590187649 is a `hidden beast` number, since 5 + 6 + 21 + 590 + 18 + 7 + 6 + 4 + 9 = 666.

It is not a de Polignac number, because 5621590187649 - 2¹² = 5621590183553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5621590187659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56436144 + ... + 56535665.

It is an arithmetic number, because the mean of its divisors is an integer number (276780934500).

Almost surely, 2^{5621590187649} is an apocalyptic number.

It is an amenable number.

5621590187649 is a deficient number, since it is larger than the sum of its proper divisors (3235399716351).

5621590187649 is a wasteful number, since it uses less digits than its factorization.

5621590187649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112971934 (or 112971928 counting only the distinct ones).

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

The spelling of 5621590187649 in words is "five trillion, six hundred twenty-one billion, five hundred ninety million, one hundred eighty-seven thousand, six hundred forty-nine".