1055780827807 has 16 divisors (see below), whose sum is σ = 1068966712800. Its totient is φ = 1042643847168.

The previous prime is 1055780827793. The next prime is 1055780827817. The reversal of 1055780827807 is 7087280875501.

It is a cyclic number.

It is not a de Polignac number, because 1055780827807 - 2⁷ = 1055780827679 is a prime.

It is a super-2 number, since 2×1055780827807² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055780827817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153030444 + ... + 153037342.

It is an arithmetic number, because the mean of its divisors is an integer number (66810419550).

Almost surely, 2^{1055780827807} is an apocalyptic number.

1055780827807 is a deficient number, since it is larger than the sum of its proper divisors (13185884993).

1055780827807 is an equidigital number, since it uses as much as digits as its factorization.

1055780827807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170.

The product of its (nonzero) digits is 8780800, while the sum is 58.

The spelling of 1055780827807 in words is "one trillion, fifty-five billion, seven hundred eighty million, eight hundred twenty-seven thousand, eight hundred seven".