6785497899 has 20 divisors (see below), whose sum is σ = 10463344320. Its totient is φ = 4377738960.

The previous prime is 6785497879. The next prime is 6785497919. The reversal of 6785497899 is 9987945876.

6785497899 is a `hidden beast` number, since 6 + 7 + 8 + 549 + 78 + 9 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (6785497879) and next prime (6785497919).

It is not a de Polignac number, because 6785497899 - 2¹³ = 6785489707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6785497819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1348644 + ... + 1353665.

It is an arithmetic number, because the mean of its divisors is an integer number (523167216).

Almost surely, 2^6785497899 is an apocalyptic number.

6785497899 is a deficient number, since it is larger than the sum of its proper divisors (3677846421).

6785497899 is a wasteful number, since it uses less digits than its factorization.

6785497899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702352 (or 2702343 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 72.

The square root of 6785497899 is about 82374.1336767799. The cubic root of 6785497899 is about 1893.1887138850.

The spelling of 6785497899 in words is "six billion, seven hundred eighty-five million, four hundred ninety-seven thousand, eight hundred ninety-nine".