2802780057 has 24 divisors (see below), whose sum is σ = 4742368992. Its totient is φ = 1455988800.

The previous prime is 2802780053. The next prime is 2802780059. The reversal of 2802780057 is 7500872082.

2802780057 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2802780057 - 2² = 2802780053 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2802779997 and 2802780024.

It is not an unprimeable number, because it can be changed into a prime (2802780053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865044 + ... + 868277.

It is an arithmetic number, because the mean of its divisors is an integer number (197598708).

Almost surely, 2^2802780057 is an apocalyptic number.

It is an amenable number.

2802780057 is a deficient number, since it is larger than the sum of its proper divisors (1939588935).

2802780057 is a wasteful number, since it uses less digits than its factorization.

2802780057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733349 (or 1733342 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 2802780057 is about 52941.2887735083. The cubic root of 2802780057 is about 1409.9260657375.

The spelling of 2802780057 in words is "two billion, eight hundred two million, seven hundred eighty thousand, fifty-seven".