2820303637938 has 32 divisors (see below), whose sum is σ = 6271101270720. Its totient is φ = 939537234720.

The previous prime is 2820303637913. The next prime is 2820303637961. The reversal of 2820303637938 is 8397363030282.

It is a happy number.

2820303637938 is a `hidden beast` number, since 2 + 8 + 203 + 0 + 36 + 379 + 38 = 666.

It is a super-2 number, since 2×2820303637938² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 15575203 + ... + 15755238.

It is an arithmetic number, because the mean of its divisors is an integer number (195971914710).

Almost surely, 2^{2820303637938} is an apocalyptic number.

2820303637938 is an abundant number, since it is smaller than the sum of its proper divisors (3450797632782).

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

2820303637938 is a wasteful number, since it uses less digits than its factorization.

2820303637938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31332119 (or 31332113 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 2820303637938 in words is "two trillion, eight hundred twenty billion, three hundred three million, six hundred thirty-seven thousand, nine hundred thirty-eight".