5611621004 has 24 divisors (see below), whose sum is σ = 10819173456. Its totient is φ = 2525480000.

The previous prime is 5611620943. The next prime is 5611621027. The reversal of 5611621004 is 4001261165.

It is a super-4 number, since 4×5611621004⁴ (a number of 40 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626927 + ... + 635814.

It is an arithmetic number, because the mean of its divisors is an integer number (450798894).

Almost surely, 2^5611621004 is an apocalyptic number.

It is an amenable number.

5611621004 is a deficient number, since it is larger than the sum of its proper divisors (5207552452).

5611621004 is a wasteful number, since it uses less digits than its factorization.

5611621004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262857 (or 1262855 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 5611621004 is about 74910.7535938599. The cubic root of 5611621004 is about 1777.0355280932.

Adding to 5611621004 its reverse (4001261165), we get a palindrome (9612882169).

The spelling of 5611621004 in words is "five billion, six hundred eleven million, six hundred twenty-one thousand, four".