6767987540 has 24 divisors (see below), whose sum is σ = 14345608032. Its totient is φ = 2681893280.

The previous prime is 6767987533. The next prime is 6767987617. The reversal of 6767987540 is 457897676.

It is a self number, because there is not a number n which added to its sum of digits gives 6767987540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579166 + ... + 1583445.

It is an arithmetic number, because the mean of its divisors is an integer number (597733668).

Almost surely, 2^6767987540 is an apocalyptic number.

It is an amenable number.

6767987540 is an abundant number, since it is smaller than the sum of its proper divisors (7577620492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6767987540 is a wasteful number, since it uses less digits than its factorization.

6767987540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162727 (or 3162725 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 59.

The square root of 6767987540 is about 82267.7794765363. The cubic root of 6767987540 is about 1891.5588177456.

The spelling of 6767987540 in words is "six billion, seven hundred sixty-seven million, nine hundred eighty-seven thousand, five hundred forty".