2820624062640 has 80 divisors (see below), whose sum is σ = 8763852768000. Its totient is φ = 750453025536.

The previous prime is 2820624062621. The next prime is 2820624062681. The reversal of 2820624062640 is 462604260282.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2820624062592 and 2820624062601.

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, 13280290 + ... + 13491009.

It is an arithmetic number, because the mean of its divisors is an integer number (109548159600).

Almost surely, 2^{2820624062640} is an apocalyptic number.

2820624062640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820624062640 is an abundant number, since it is smaller than the sum of its proper divisors (5943228705360).

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

2820624062640 is a wasteful number, since it uses less digits than its factorization.

2820624062640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26771754 (or 26771748 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 2820624062640 in words is "two trillion, eight hundred twenty billion, six hundred twenty-four million, sixty-two thousand, six hundred forty".