8000236028421 has 36 divisors (see below), whose sum is σ = 14476617585612. Its totient is φ = 4219904715264.

The previous prime is 8000236028401. The next prime is 8000236028441. The reversal of 8000236028421 is 1248206320008.

8000236028421 is a `hidden beast` number, since 8 + 0 + 0 + 0 + 2 + 3 + 602 + 8 + 42 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (8000236028401) and next prime (8000236028441).

It can be written as a sum of positive squares in 2 ways, for example, as 4000580021025 + 3999656007396 = 2000145^2 + 1999914^2 .

It is not a de Polignac number, because 8000236028421 - 2²³ = 8000227639813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000236028401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 697729836 + ... + 697741301.

It is an arithmetic number, because the mean of its divisors is an integer number (402128266267).

Almost surely, 2^{8000236028421} is an apocalyptic number.

It is an amenable number.

8000236028421 is a deficient number, since it is larger than the sum of its proper divisors (6476381557191).

8000236028421 is a wasteful number, since it uses less digits than its factorization.

8000236028421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395471170 (or 1395471160 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 8000236028421 in words is "eight trillion, two hundred thirty-six million, twenty-eight thousand, four hundred twenty-one".