2552786636818 has 32 divisors (see below), whose sum is σ = 4281567475968. Its totient is φ = 1131569088000.

The previous prime is 2552786636789. The next prime is 2552786636819. The reversal of 2552786636818 is 8186366872552.

It is a super-2 number, since 2×2552786636818² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2552786636819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4169983 + ... + 4742818.

It is an arithmetic number, because the mean of its divisors is an integer number (133798983624).

Almost surely, 2^{2552786636818} is an apocalyptic number.

2552786636818 is a deficient number, since it is larger than the sum of its proper divisors (1728780839150).

2552786636818 is a wasteful number, since it uses less digits than its factorization.

2552786636818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8913138.

The product of its digits is 232243200, while the sum is 67.

The spelling of 2552786636818 in words is "two trillion, five hundred fifty-two billion, seven hundred eighty-six million, six hundred thirty-six thousand, eight hundred eighteen".