6786541990 has 32 divisors (see below), whose sum is σ = 12296896416. Its totient is φ = 2696632320.

The previous prime is 6786541987. The next prime is 6786541991. The reversal of 6786541990 is 991456876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6786541991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582389 + ... + 1586671.

It is an arithmetic number, because the mean of its divisors is an integer number (384278013).

Almost surely, 2^6786541990 is an apocalyptic number.

6786541990 is a deficient number, since it is larger than the sum of its proper divisors (5510354426).

6786541990 is a wasteful number, since it uses less digits than its factorization.

6786541990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 6786541990 is about 82380.4709260635. The cubic root of 6786541990 is about 1893.2858111529.

The spelling of 6786541990 in words is "six billion, seven hundred eighty-six million, five hundred forty-one thousand, nine hundred ninety".