4320645051 has 16 divisors (see below), whose sum is σ = 5786856704. Its totient is φ = 2867452704.

The previous prime is 4320645001. The next prime is 4320645073. The reversal of 4320645051 is 1505460234.

It is not a de Polignac number, because 4320645051 - 2²¹ = 4318547899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4320645001) 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, 1226745 + ... + 1230261.

It is an arithmetic number, because the mean of its divisors is an integer number (361678544).

Almost surely, 2^4320645051 is an apocalyptic number.

4320645051 is a deficient number, since it is larger than the sum of its proper divisors (1466211653).

4320645051 is a wasteful number, since it uses less digits than its factorization.

4320645051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 4320645051 is about 65731.6137866704. The cubic root of 4320645051 is about 1628.7316278577.

The spelling of 4320645051 in words is "four billion, three hundred twenty million, six hundred forty-five thousand, fifty-one".