7638100044 has 48 divisors (see below), whose sum is σ = 18519115776. Its totient is φ = 2447568000.

The previous prime is 7638100037. The next prime is 7638100079. The reversal of 7638100044 is 4400018367.

It is a super-3 number, since 3×7638100044³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7638099978 and 7638100014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11817 + ... + 124160.

It is an arithmetic number, because the mean of its divisors is an integer number (385814912).

Almost surely, 2^7638100044 is an apocalyptic number.

It is an amenable number.

7638100044 is an abundant number, since it is smaller than the sum of its proper divisors (10881015732).

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

7638100044 is a wasteful number, since it uses less digits than its factorization.

7638100044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136166 (or 136164 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 7638100044 is about 87396.2244264591. The cubic root of 7638100044 is about 1969.3751223130.

The spelling of 7638100044 in words is "seven billion, six hundred thirty-eight million, one hundred thousand, forty-four".