7406181612 has 18 divisors (see below), whose sum is σ = 18721181388. Its totient is φ = 2468727192.

The previous prime is 7406181577. The next prime is 7406181613. The reversal of 7406181612 is 2161816047.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 205727267 = 7406181612 / (7 + 4 + 0 + 6 + 1 + 8 + 1 + 6 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (7406181613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102863598 + ... + 102863669.

Almost surely, 2^7406181612 is an apocalyptic number.

It is an amenable number.

7406181612 is an abundant number, since it is smaller than the sum of its proper divisors (11314999776).

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

7406181612 is a wasteful number, since it uses less digits than its factorization.

7406181612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205727277 (or 205727272 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7406181612 is about 86059.1750599551. The cubic root of 7406181612 is about 1949.2376254513.

Adding to 7406181612 its reverse (2161816047), we get a palindrome (9567997659).

The spelling of 7406181612 in words is "seven billion, four hundred six million, one hundred eighty-one thousand, six hundred twelve".