11626464618 has 12 divisors (see below), whose sum is σ = 25190673378. Its totient is φ = 3875488200.

The previous prime is 11626464607. The next prime is 11626464631. The reversal of 11626464618 is 81646462611.

11626464618 is a `hidden beast` number, since 1 + 1 + 6 + 26 + 4 + 6 + 4 + 618 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11400473529 + 225991089 = 106773^2 + 15033^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322957333 + ... + 322957368.

Almost surely, 2^11626464618 is an apocalyptic number.

11626464618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11626464618 is an abundant number, since it is smaller than the sum of its proper divisors (13564208760).

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

11626464618 is a wasteful number, since it uses less digits than its factorization.

11626464618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645914709 (or 645914706 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 11626464618 in words is "eleven billion, six hundred twenty-six million, four hundred sixty-four thousand, six hundred eighteen".