4920497664 has 80 divisors (see below), whose sum is σ = 13293434880. Its totient is φ = 1617029120.

The previous prime is 4920497639. The next prime is 4920497671. The reversal of 4920497664 is 4667940294.

It is a super-2 number, since 2×4920497664² = 48422594522858913792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86497 + ... + 131615.

It is an arithmetic number, because the mean of its divisors is an integer number (166167936).

Almost surely, 2^4920497664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4920497664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6646717440).

4920497664 is an abundant number, since it is smaller than the sum of its proper divisors (8372937216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4920497664 is an equidigital number, since it uses as much as digits as its factorization.

4920497664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45211 (or 45195 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 4920497664 is about 70146.2590877090. The cubic root of 4920497664 is about 1700.8643429299.

The spelling of 4920497664 in words is "four billion, nine hundred twenty million, four hundred ninety-seven thousand, six hundred sixty-four".