56770821790 has 16 divisors (see below), whose sum is σ = 104679857520. Its totient is φ = 22154466880.

The previous prime is 56770821733. The next prime is 56770821797. The reversal of 56770821790 is 9712807765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56770821797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69232300 + ... + 69233119.

It is an arithmetic number, because the mean of its divisors is an integer number (6542491095).

Almost surely, 2^56770821790 is an apocalyptic number.

56770821790 is a deficient number, since it is larger than the sum of its proper divisors (47909035730).

56770821790 is a wasteful number, since it uses less digits than its factorization.

56770821790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138465467.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 56770821790 in words is "fifty-six billion, seven hundred seventy million, eight hundred twenty-one thousand, seven hundred ninety".