4890881864 has 16 divisors (see below), whose sum is σ = 10004076720. Its totient is φ = 2223128080.

The previous prime is 4890881843. The next prime is 4890881869. The reversal of 4890881864 is 4681880984.

It is a super-2 number, since 2×4890881864² = 47841450815208228992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4890881869) 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, 27789014 + ... + 27789189.

It is an arithmetic number, because the mean of its divisors is an integer number (625254795).

Almost surely, 2^4890881864 is an apocalyptic number.

4890881864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4890881864 is an abundant number, since it is smaller than the sum of its proper divisors (5113194856).

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

4890881864 is a wasteful number, since it uses less digits than its factorization.

4890881864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55578220 (or 55578216 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 56.

The square root of 4890881864 is about 69934.8401299381. The cubic root of 4890881864 is about 1697.4450506425.

The spelling of 4890881864 in words is "four billion, eight hundred ninety million, eight hundred eighty-one thousand, eight hundred sixty-four".