5647772021 has 16 divisors (see below), whose sum is σ = 5987520000. Its totient is φ = 5312372976.

The previous prime is 5647771999. The next prime is 5647772029. The reversal of 5647772021 is 1202777465.

It is a cyclic number.

It is not a de Polignac number, because 5647772021 - 2⁶ = 5647771957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5647772021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5647772029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281200 + ... + 4282518.

It is an arithmetic number, because the mean of its divisors is an integer number (374220000).

Almost surely, 2^5647772021 is an apocalyptic number.

It is an amenable number.

5647772021 is a deficient number, since it is larger than the sum of its proper divisors (339747979).

5647772021 is a wasteful number, since it uses less digits than its factorization.

5647772021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 5647772021 is about 75151.6601346903. The cubic root of 5647772021 is about 1780.8433512574.

The spelling of 5647772021 in words is "five billion, six hundred forty-seven million, seven hundred seventy-two thousand, twenty-one".