2920351821880 has 32 divisors (see below), whose sum is σ = 6782752621440. Its totient is φ = 1130458769280.

The previous prime is 2920351821859. The next prime is 2920351821901. The reversal of 2920351821880 is 881281530292.

It is an interprime number because it is at equal distance from previous prime (2920351821859) and next prime (2920351821901).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 1177559979 + ... + 1177562458.

It is an arithmetic number, because the mean of its divisors is an integer number (211961019420).

Almost surely, 2^{2920351821880} is an apocalyptic number.

2920351821880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2920351821880 is an abundant number, since it is smaller than the sum of its proper divisors (3862400799560).

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

2920351821880 is a wasteful number, since it uses less digits than its factorization.

2920351821880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355122479 (or 2355122475 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 2920351821880 in words is "two trillion, nine hundred twenty billion, three hundred fifty-one million, eight hundred twenty-one thousand, eight hundred eighty".