2820691072436 has 72 divisors (see below), whose sum is σ = 5096872105920. Its totient is φ = 1365587144064.

The previous prime is 2820691072427. The next prime is 2820691072523. The reversal of 2820691072436 is 6342701960282.

It is a super-2 number, since 2×2820691072436² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 326200265 + ... + 326208911.

It is an arithmetic number, because the mean of its divisors is an integer number (70789890360).

Almost surely, 2^{2820691072436} is an apocalyptic number.

It is an amenable number.

2820691072436 is a deficient number, since it is larger than the sum of its proper divisors (2276181033484).

2820691072436 is a wasteful number, since it uses less digits than its factorization.

2820691072436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061 (or 8980 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 2820691072436 in words is "two trillion, eight hundred twenty billion, six hundred ninety-one million, seventy-two thousand, four hundred thirty-six".