4861407640 has 32 divisors (see below), whose sum is σ = 11513862000. Its totient is φ = 1842217344.

The previous prime is 4861407589. The next prime is 4861407647. The reversal of 4861407640 is 467041684.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4861407593 and 4861407602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4861407647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197535 + ... + 3199054.

Almost surely, 2^4861407640 is an apocalyptic number.

4861407640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4861407640 is an abundant number, since it is smaller than the sum of its proper divisors (6652454360).

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

4861407640 is a wasteful number, since it uses less digits than its factorization.

4861407640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396619 (or 6396615 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 4861407640 is about 69723.7953642800. The cubic root of 4861407640 is about 1694.0283719967.

The spelling of 4861407640 in words is "four billion, eight hundred sixty-one million, four hundred seven thousand, six hundred forty".