2620864420420 has 24 divisors (see below), whose sum is σ = 5504604427224. Its totient is φ = 1048195454976.

The previous prime is 2620864420417. The next prime is 2620864420459. The reversal of 2620864420420 is 240244680262.

It can be written as a sum of positive squares in 4 ways, for example, as 110743859524 + 2510120560896 = 332782^2 + 1584336^2 .

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, 9251547 + ... + 9530626.

It is an arithmetic number, because the mean of its divisors is an integer number (229358517801).

Almost surely, 2^{2620864420420} is an apocalyptic number.

2620864420420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620864420420 is an abundant number, since it is smaller than the sum of its proper divisors (2883740006804).

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

2620864420420 is a wasteful number, since it uses less digits than its factorization.

2620864420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18789159 (or 18789157 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 2620864420420 in words is "two trillion, six hundred twenty billion, eight hundred sixty-four million, four hundred twenty thousand, four hundred twenty".