6780061757 has 8 divisors (see below), whose sum is σ = 8015836800. Its totient is φ = 5611085424.

The previous prime is 6780061697. The next prime is 6780061763. The reversal of 6780061757 is 7571600876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6780061757 - 2²² = 6775867453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780061157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16699457 + ... + 16699862.

It is an arithmetic number, because the mean of its divisors is an integer number (1001979600).

Almost surely, 2^6780061757 is an apocalyptic number.

It is an amenable number.

6780061757 is a deficient number, since it is larger than the sum of its proper divisors (1235775043).

6780061757 is a wasteful number, since it uses less digits than its factorization.

6780061757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33399355.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 6780061757 is about 82341.1304088060. The cubic root of 6780061757 is about 1892.6830083145.

The spelling of 6780061757 in words is "six billion, seven hundred eighty million, sixty-one thousand, seven hundred fifty-seven".