4026821892961 has 16 divisors (see below), whose sum is σ = 4717494673920. Its totient is φ = 3365115333120.

The previous prime is 4026821892931. The next prime is 4026821892967. The reversal of 4026821892961 is 1692981286204.

It is a happy number.

4026821892961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4026821892961 - 2²¹ = 4026819795809 is a prime.

It is a super-2 number, since 2×4026821892961² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4026821892896 and 4026821892905.

It is not an unprimeable number, because it can be changed into a prime (4026821892967) 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, 4284121 + ... + 5138806.

It is an arithmetic number, because the mean of its divisors is an integer number (294843417120).

Almost surely, 2^{4026821892961} is an apocalyptic number.

4026821892961 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4026821892961 is a deficient number, since it is larger than the sum of its proper divisors (690672780959).

4026821892961 is a wasteful number, since it uses less digits than its factorization.

4026821892961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424464.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 4026821892961 in words is "four trillion, twenty-six billion, eight hundred twenty-one million, eight hundred ninety-two thousand, nine hundred sixty-one".