6138409104 has 45 divisors (see below), whose sum is σ = 17181651513. Its totient is φ = 2045822976.

The previous prime is 6138409093. The next prime is 6138409111. The reversal of 6138409104 is 4019048316.

The square root of 6138409104 is 78348.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 531394704 + 5607014400 = 23052^2 + 74880^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 936912 + ... + 943440.

Almost surely, 2^6138409104 is an apocalyptic number.

6138409104 is the 78348-th square number.

It is an amenable number.

6138409104 is an abundant number, since it is smaller than the sum of its proper divisors (11043242409).

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

6138409104 is an frugal number, since it uses more digits than its factorization.

6138409104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The cubic root of 6138409104 is about 1830.9870658164.

Multiplying 6138409104 by its sum of digits (36), we get a square (220982727744 = 470088²).

6138409104 divided by its sum of digits (36) gives a square (170511364 = 13058²).

Multiplying 6138409104 by its product of nonzero digits (20736), we get a square (127286051180544 = 11282112²).

The spelling of 6138409104 in words is "six billion, one hundred thirty-eight million, four hundred nine thousand, one hundred four".