4903991640 has 128 divisors (see below), whose sum is σ = 16910424000. Its totient is φ = 1262628864.

The previous prime is 4903991639. The next prime is 4903991647. The reversal of 4903991640 is 461993094.

4903991640 is a `hidden beast` number, since 490 + 39 + 91 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4903991647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46969 + ... + 109608.

Almost surely, 2^4903991640 is an apocalyptic number.

4903991640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4903991640 is an abundant number, since it is smaller than the sum of its proper divisors (12006432360).

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

4903991640 is a wasteful number, since it uses less digits than its factorization.

4903991640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156626 (or 156616 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 4903991640 is about 70028.5059100935. The cubic root of 4903991640 is about 1698.9603377793.

The spelling of 4903991640 in words is "four billion, nine hundred three million, nine hundred ninety-one thousand, six hundred forty".