4507228164921 has 16 divisors (see below), whose sum is σ = 6167865499200. Its totient is φ = 2926712625408.

The previous prime is 4507228164883. The next prime is 4507228164961. The reversal of 4507228164921 is 1294618227054.

It is a happy number.

It is not a de Polignac number, because 4507228164921 - 2¹⁰ = 4507228163897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4507228164961) 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, 125959756 + ... + 125995533.

It is an arithmetic number, because the mean of its divisors is an integer number (385491593700).

Almost surely, 2^{4507228164921} is an apocalyptic number.

It is an amenable number.

4507228164921 is a deficient number, since it is larger than the sum of its proper divisors (1660637334279).

4507228164921 is a wasteful number, since it uses less digits than its factorization.

4507228164921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251955448.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 4507228164921 in words is "four trillion, five hundred seven billion, two hundred twenty-eight million, one hundred sixty-four thousand, nine hundred twenty-one".