1055804047867 has 4 divisors (see below), whose sum is σ = 1055952696960. Its totient is φ = 1055655398776.

The previous prime is 1055804047841. The next prime is 1055804047897. The reversal of 1055804047867 is 7687404085501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055804047867 - 2¹⁵ = 1055804015099 is a prime.

It is a super-2 number, since 2×1055804047867² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055804047807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74313892 + ... + 74328097.

It is an arithmetic number, because the mean of its divisors is an integer number (263988174240).

Almost surely, 2^{1055804047867} is an apocalyptic number.

1055804047867 is a deficient number, since it is larger than the sum of its proper divisors (148649093).

1055804047867 is an equidigital number, since it uses as much as digits as its factorization.

1055804047867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148649092.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 1055804047867 in words is "one trillion, fifty-five billion, eight hundred four million, forty-seven thousand, eight hundred sixty-seven".