2819211516 has 72 divisors (see below), whose sum is σ = 7780119984. Its totient is φ = 853655040.

The previous prime is 2819211511. The next prime is 2819211523. The reversal of 2819211516 is 6151129182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819211511) 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 23 ways as a sum of consecutive naturals, for example, 874740 + ... + 877956.

It is an arithmetic number, because the mean of its divisors is an integer number (108057222).

Almost surely, 2^2819211516 is an apocalyptic number.

It is an amenable number.

2819211516 is an abundant number, since it is smaller than the sum of its proper divisors (4960908468).

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

2819211516 is a wasteful number, since it uses less digits than its factorization.

2819211516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451 (or 5446 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 2819211516 is about 53096.2476640299. The cubic root of 2819211516 is about 1412.6759564234.

The spelling of 2819211516 in words is "two billion, eight hundred nineteen million, two hundred eleven thousand, five hundred sixteen".