5621780823770 has 16 divisors (see below), whose sum is σ = 10119355148448. Its totient is φ = 2248679070480.

The previous prime is 5621780823683. The next prime is 5621780823809. The reversal of 5621780823770 is 773280871265.

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, 3441584 + ... + 4805003.

It is an arithmetic number, because the mean of its divisors is an integer number (632459696778).

Almost surely, 2^{5621780823770} is an apocalyptic number.

5621780823770 is a deficient number, since it is larger than the sum of its proper divisors (4497574324678).

5621780823770 is a wasteful number, since it uses less digits than its factorization.

5621780823770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314765.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 5621780823770 in words is "five trillion, six hundred twenty-one billion, seven hundred eighty million, eight hundred twenty-three thousand, seven hundred seventy".