1054877726921 has 8 divisors (see below), whose sum is σ = 1057829884200. Its totient is φ = 1051929640960.

The previous prime is 1054877726911. The next prime is 1054877726953. The reversal of 1054877726921 is 1296277784501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 560372016400 + 494505710521 = 748580^2 + 703211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1054877726921 - 2¹⁰ = 1054877725897 is a prime.

It is a super-2 number, since 2×1054877726921² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1054877726911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498536 + ... + 1535673.

It is an arithmetic number, because the mean of its divisors is an integer number (132228735525).

Almost surely, 2^{1054877726921} is an apocalyptic number.

It is an amenable number.

1054877726921 is a deficient number, since it is larger than the sum of its proper divisors (2952157279).

1054877726921 is an equidigital number, since it uses as much as digits as its factorization.

1054877726921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035659.

The product of its (nonzero) digits is 11854080, while the sum is 59.

The spelling of 1054877726921 in words is "one trillion, fifty-four billion, eight hundred seventy-seven million, seven hundred twenty-six thousand, nine hundred twenty-one".