7388473665618 has 12 divisors (see below), whose sum is σ = 16008359608878. Its totient is φ = 2462824555200.

The previous prime is 7388473665493. The next prime is 7388473665653. The reversal of 7388473665618 is 8165663748837.

7388473665618 is a `hidden beast` number, since 7 + 3 + 88 + 473 + 6 + 65 + 6 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5258779999209 + 2129693666409 = 2293203^2 + 1459347^2 .

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, 205235379583 + ... + 205235379618.

Almost surely, 2^{7388473665618} is an apocalyptic number.

7388473665618 is an abundant number, since it is smaller than the sum of its proper divisors (8619885943260).

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

7388473665618 is a wasteful number, since it uses less digits than its factorization.

7388473665618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410470759209 (or 410470759206 counting only the distinct ones).

The product of its digits is 975421440, while the sum is 72.

It can be divided in two parts, 7388473 and 665618, that added together give a triangular number (8054091 = T₄₀₁₃).

The spelling of 7388473665618 in words is "seven trillion, three hundred eighty-eight billion, four hundred seventy-three million, six hundred sixty-five thousand, six hundred eighteen".