4631720545 has 16 divisors (see below), whose sum is σ = 5652138240. Its totient is φ = 3642724800.

The previous prime is 4631720543. The next prime is 4631720551. The reversal of 4631720545 is 5450271364.

It is not a de Polignac number, because 4631720545 - 2¹ = 4631720543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4631720543) 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, 970876 + ... + 975634.

It is an arithmetic number, because the mean of its divisors is an integer number (353258640).

Almost surely, 2^4631720545 is an apocalyptic number.

It is an amenable number.

4631720545 is a deficient number, since it is larger than the sum of its proper divisors (1020417695).

4631720545 is a wasteful number, since it uses less digits than its factorization.

4631720545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 4631720545 is about 68056.7450367706. The cubic root of 4631720545 is about 1666.9175387471.

The spelling of 4631720545 in words is "four billion, six hundred thirty-one million, seven hundred twenty thousand, five hundred forty-five".