4570928732921 has 4 divisors (see below), whose sum is σ = 4657172671332. Its totient is φ = 4484684794512.

The previous prime is 4570928732809. The next prime is 4570928732969. The reversal of 4570928732921 is 1292378290754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1273929829225 + 3296998903696 = 1128685^2 + 1815764^2 .

It is a cyclic number.

It is not a de Polignac number, because 4570928732921 - 2³⁸ = 4296050825977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4570928731921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43121969126 + ... + 43121969231.

It is an arithmetic number, because the mean of its divisors is an integer number (1164293167833).

Almost surely, 2^{4570928732921} is an apocalyptic number.

It is an amenable number.

4570928732921 is a deficient number, since it is larger than the sum of its proper divisors (86243938411).

4570928732921 is an equidigital number, since it uses as much as digits as its factorization.

4570928732921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86243938410.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 4570928732921 in words is "four trillion, five hundred seventy billion, nine hundred twenty-eight million, seven hundred thirty-two thousand, nine hundred twenty-one".