4780191819 has 16 divisors (see below), whose sum is σ = 6865107200. Its totient is φ = 2941124256.

The previous prime is 4780191797. The next prime is 4780191833. The reversal of 4780191819 is 9181910874.

It is not a de Polignac number, because 4780191819 - 2¹² = 4780187723 is a prime.

It is a super-2 number, since 2×4780191819² = 45700467652869057522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4780091819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402042 + ... + 413760.

It is an arithmetic number, because the mean of its divisors is an integer number (429069200).

Almost surely, 2^4780191819 is an apocalyptic number.

4780191819 is a deficient number, since it is larger than the sum of its proper divisors (2084915381).

4780191819 is a wasteful number, since it uses less digits than its factorization.

4780191819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22194.

The product of its (nonzero) digits is 145152, while the sum is 48.

The square root of 4780191819 is about 69138.9312833226. The cubic root of 4780191819 is about 1684.5417332199.

The spelling of 4780191819 in words is "four billion, seven hundred eighty million, one hundred ninety-one thousand, eight hundred nineteen".