5577621718 has 4 divisors (see below), whose sum is σ = 8366432580. Its totient is φ = 2788810858.

The previous prime is 5577621691. The next prime is 5577621737. The reversal of 5577621718 is 8171267755.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×5577621718² = 62219728058210543048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394405428 + ... + 1394405431.

It is an arithmetic number, because the mean of its divisors is an integer number (2091608145).

Almost surely, 2^5577621718 is an apocalyptic number.

5577621718 is a deficient number, since it is larger than the sum of its proper divisors (2788810862).

5577621718 is a wasteful number, since it uses less digits than its factorization.

5577621718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788810861.

The product of its digits is 823200, while the sum is 49.

The square root of 5577621718 is about 74683.4768740717. The cubic root of 5577621718 is about 1773.4393972481.

The spelling of 5577621718 in words is "five billion, five hundred seventy-seven million, six hundred twenty-one thousand, seven hundred eighteen".