1206264677818 has 32 divisors (see below), whose sum is σ = 2063564648640. Its totient is φ = 525270977280.

The previous prime is 1206264677759. The next prime is 1206264677819. The reversal of 1206264677818 is 8187764626021.

It is a super-2 number, since 2×1206264677818² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1206264677819) 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, 21684813 + ... + 21740368.

It is an arithmetic number, because the mean of its divisors is an integer number (64486395270).

Almost surely, 2^{1206264677818} is an apocalyptic number.

1206264677818 is a deficient number, since it is larger than the sum of its proper divisors (857299970822).

1206264677818 is a wasteful number, since it uses less digits than its factorization.

1206264677818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43425262.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 1206264677818 in words is "one trillion, two hundred six billion, two hundred sixty-four million, six hundred seventy-seven thousand, eight hundred eighteen".