5632721678 has 8 divisors (see below), whose sum is σ = 8740430280. Its totient is φ = 2719244920.

The previous prime is 5632721663. The next prime is 5632721687. The reversal of 5632721678 is 8761272365.

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

It is a super-2 number, since 2×5632721678² = 63455107003622271368, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48557888 + ... + 48558003.

It is an arithmetic number, because the mean of its divisors is an integer number (1092553785).

Almost surely, 2^5632721678 is an apocalyptic number.

5632721678 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5632721678 is a deficient number, since it is larger than the sum of its proper divisors (3107708602).

5632721678 is a wasteful number, since it uses less digits than its factorization.

5632721678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97115922.

The product of its digits is 846720, while the sum is 47.

The square root of 5632721678 is about 75051.4601989861. The cubic root of 5632721678 is about 1779.2600634097.

The spelling of 5632721678 in words is "five billion, six hundred thirty-two million, seven hundred twenty-one thousand, six hundred seventy-eight".