5537561678 has 8 divisors (see below), whose sum is σ = 9061464600. Its totient is φ = 2517073480.

The previous prime is 5537561669. The next prime is 5537561681. The reversal of 5537561678 is 8761657355.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125853653 + ... + 125853696.

It is an arithmetic number, because the mean of its divisors is an integer number (1132683075).

Almost surely, 2^5537561678 is an apocalyptic number.

5537561678 is a deficient number, since it is larger than the sum of its proper divisors (3523902922).

5537561678 is a wasteful number, since it uses less digits than its factorization.

5537561678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251707362.

The product of its digits is 5292000, while the sum is 53.

The square root of 5537561678 is about 74414.7947521190. The cubic root of 5537561678 is about 1769.1834123607.

The spelling of 5537561678 in words is "five billion, five hundred thirty-seven million, five hundred sixty-one thousand, six hundred seventy-eight".