6916815451 has 24 divisors (see below), whose sum is σ = 8680107744. Its totient is φ = 5463118080.

The previous prime is 6916815443. The next prime is 6916815463. The reversal of 6916815451 is 1545186196.

6916815451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6916815451 - 2³ = 6916815443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6916815431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368586 + ... + 386896.

It is an arithmetic number, because the mean of its divisors is an integer number (361671156).

Almost surely, 2^6916815451 is an apocalyptic number.

6916815451 is a deficient number, since it is larger than the sum of its proper divisors (1763292293).

6916815451 is a wasteful number, since it uses less digits than its factorization.

6916815451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18931 (or 18924 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 6916815451 is about 83167.3941578068. The cubic root of 6916815451 is about 1905.3235237923.

The spelling of 6916815451 in words is "six billion, nine hundred sixteen million, eight hundred fifteen thousand, four hundred fifty-one".