6518040774 has 32 divisors (see below), whose sum is σ = 14903367936. Its totient is φ = 1861673760.

The previous prime is 6518040773. The next prime is 6518040787. The reversal of 6518040774 is 4770408156.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6518040773) 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, 109209 + ... + 157995.

It is an arithmetic number, because the mean of its divisors is an integer number (465730248).

Almost surely, 2^6518040774 is an apocalyptic number.

6518040774 is an abundant number, since it is smaller than the sum of its proper divisors (8385327162).

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

6518040774 is a wasteful number, since it uses less digits than its factorization.

6518040774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51980.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 6518040774 is about 80734.3840875745. The cubic root of 6518040774 is about 1867.9805832221.

The spelling of 6518040774 in words is "six billion, five hundred eighteen million, forty thousand, seven hundred seventy-four".