6820247154 has 32 divisors (see below), whose sum is σ = 15595130880. Its totient is φ = 1947892752.

The previous prime is 6820247143. The next prime is 6820247171. The reversal of 6820247154 is 4517420286.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84337 + ... + 144059.

It is an arithmetic number, because the mean of its divisors is an integer number (487347840).

Almost surely, 2^6820247154 is an apocalyptic number.

6820247154 is an abundant number, since it is smaller than the sum of its proper divisors (8774883726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6820247154 is a wasteful number, since it uses less digits than its factorization.

6820247154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62454.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 6820247154 is about 82584.7876669790. The cubic root of 6820247154 is about 1896.4149529521.

The spelling of 6820247154 in words is "six billion, eight hundred twenty million, two hundred forty-seven thousand, one hundred fifty-four".