4780611990 has 648 divisors, whose sum is σ = 17427324096. Its totient is φ = 904780800.

The previous prime is 4780611977. The next prime is 4780611991. The reversal of 4780611990 is 991160874.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780611991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 154213275 + ... + 154213305.

Almost surely, 2^4780611990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4780611990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8713662048).

4780611990 is an abundant number, since it is smaller than the sum of its proper divisors (12646712106).

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

4780611990 is a wasteful number, since it uses less digits than its factorization.

4780611990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 4780611990 is about 69141.9698157349. The cubic root of 4780611990 is about 1684.5910879232.

The spelling of 4780611990 in words is "four billion, seven hundred eighty million, six hundred eleven thousand, nine hundred ninety".