8020693251 has 8 divisors (see below), whose sum is σ = 11882508560. Its totient is φ = 5347128816.

The previous prime is 8020693217. The next prime is 8020693259. The reversal of 8020693251 is 1523960208.

It is not a de Polignac number, because 8020693251 - 2²⁷ = 7886475523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8020693259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148531330 + ... + 148531383.

It is an arithmetic number, because the mean of its divisors is an integer number (1485313570).

Almost surely, 2^8020693251 is an apocalyptic number.

8020693251 is a deficient number, since it is larger than the sum of its proper divisors (3861815309).

8020693251 is a wasteful number, since it uses less digits than its factorization.

8020693251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297062722 (or 297062716 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 8020693251 is about 89558.3231810422. The cubic root of 8020693251 is about 2001.7229528738.

The spelling of 8020693251 in words is "eight billion, twenty million, six hundred ninety-three thousand, two hundred fifty-one".