2787019652 has 12 divisors (see below), whose sum is σ = 4877783820. Its totient is φ = 1393367136.

The previous prime is 2787019637. The next prime is 2787019657. The reversal of 2787019652 is 2569107872.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2318037316 + 468982336 = 48146^2 + 21656^2 .

It is a super-2 number, since 2×2787019652² = 15534957081268402208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2787019597 and 2787019606.

It is not an unprimeable number, because it can be changed into a prime (2787019657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16874 + ... + 76542.

It is an arithmetic number, because the mean of its divisors is an integer number (406481985).

Almost surely, 2^2787019652 is an apocalyptic number.

It is an amenable number.

2787019652 is a deficient number, since it is larger than the sum of its proper divisors (2090764168).

2787019652 is a wasteful number, since it uses less digits than its factorization.

2787019652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71350 (or 71348 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 2787019652 is about 52792.2309814617. The cubic root of 2787019652 is about 1407.2783627991.

The spelling of 2787019652 in words is "two billion, seven hundred eighty-seven million, nineteen thousand, six hundred fifty-two".