1608077026821 has 16 divisors (see below), whose sum is σ = 2171571732288. Its totient is φ = 1058378016000.

The previous prime is 1608077026817. The next prime is 1608077026823. The reversal of 1608077026821 is 1286207708061.

It is not a de Polignac number, because 1608077026821 - 2² = 1608077026817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608077026823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7542100 + ... + 7752381.

It is an arithmetic number, because the mean of its divisors is an integer number (135723233268).

Almost surely, 2^{1608077026821} is an apocalyptic number.

It is an amenable number.

1608077026821 is a deficient number, since it is larger than the sum of its proper divisors (563494705467).

1608077026821 is a wasteful number, since it uses less digits than its factorization.

1608077026821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15294932.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 1608077026821 in words is "one trillion, six hundred eight billion, seventy-seven million, twenty-six thousand, eight hundred twenty-one".