2786028993 has 48 divisors (see below), whose sum is σ = 4683302400. Its totient is φ = 1633975200.

The previous prime is 2786028983. The next prime is 2786029049. The reversal of 2786028993 is 3998206872.

It is a happy number.

2786028993 is a `hidden beast` number, since 27 + 8 + 602 + 8 + 9 + 9 + 3 = 666.

2786028993 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 2786028993 - 2⁴ = 2786028977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2786028983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87523 + ... + 115031.

It is an arithmetic number, because the mean of its divisors is an integer number (97568800).

Almost surely, 2^2786028993 is an apocalyptic number.

It is an amenable number.

2786028993 is a deficient number, since it is larger than the sum of its proper divisors (1897273407).

2786028993 is a wasteful number, since it uses less digits than its factorization.

2786028993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27571 (or 27554 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 2786028993 is about 52782.8475264456. The cubic root of 2786028993 is about 1407.1116018422. Note that the first 3 decimals are identical.

The spelling of 2786028993 in words is "two billion, seven hundred eighty-six million, twenty-eight thousand, nine hundred ninety-three".