5619670921 has 2 divisors, whose sum is σ = 5619670922. Its totient is φ = 5619670920.

The previous prime is 5619670897. The next prime is 5619670981. The reversal of 5619670921 is 1290769165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4967430400 + 652240521 = 70480^2 + 25539^2 .

It is a cyclic number.

It is not a de Polignac number, because 5619670921 - 2¹⁵ = 5619638153 is a prime.

It is not a weakly prime, because it can be changed into another prime (5619670981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809835460 + 2809835461.

It is an arithmetic number, because the mean of its divisors is an integer number (2809835461).

Almost surely, 2^5619670921 is an apocalyptic number.

It is an amenable number.

5619670921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5619670921 is an equidigital number, since it uses as much as digits as its factorization.

5619670921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 5619670921 is about 74964.4643881353. The cubic root of 5619670921 is about 1777.8848461860.

The spelling of 5619670921 in words is "five billion, six hundred nineteen million, six hundred seventy thousand, nine hundred twenty-one".