2683620657953 has 4 divisors (see below), whose sum is σ = 2692086338580. Its totient is φ = 2675154977328.

The previous prime is 2683620657947. The next prime is 2683620657997. The reversal of 2683620657953 is 3597560263862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1143460232929 + 1540160425024 = 1069327^2 + 1241032^2 .

It is a cyclic number.

It is not a de Polignac number, because 2683620657953 - 2¹⁰ = 2683620656929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2683620651953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232839838 + ... + 4232840471.

It is an arithmetic number, because the mean of its divisors is an integer number (673021584645).

Almost surely, 2^{2683620657953} is an apocalyptic number.

It is an amenable number.

2683620657953 is a deficient number, since it is larger than the sum of its proper divisors (8465680627).

2683620657953 is an equidigital number, since it uses as much as digits as its factorization.

2683620657953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8465680626.

The product of its (nonzero) digits is 97977600, while the sum is 62.

The spelling of 2683620657953 in words is "two trillion, six hundred eighty-three billion, six hundred twenty million, six hundred fifty-seven thousand, nine hundred fifty-three".