4943251640 has 16 divisors (see below), whose sum is σ = 11122316280. Its totient is φ = 1977300640.

The previous prime is 4943251639. The next prime is 4943251669. The reversal of 4943251640 is 461523494.

It is a junction number, because it is equal to n+sod(n) for n = 4943251594 and 4943251603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61790606 + ... + 61790685.

Almost surely, 2^4943251640 is an apocalyptic number.

4943251640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4943251640 is an abundant number, since it is smaller than the sum of its proper divisors (6179064640).

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

4943251640 is a wasteful number, since it uses less digits than its factorization.

4943251640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123581302 (or 123581298 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 4943251640 is about 70308.2615344740. The cubic root of 4943251640 is about 1703.4820946213.

The spelling of 4943251640 in words is "four billion, nine hundred forty-three million, two hundred fifty-one thousand, six hundred forty".