6545405754 has 24 divisors (see below), whose sum is σ = 14186652480. Its totient is φ = 2181041928.

The previous prime is 6545405729. The next prime is 6545405759. The reversal of 6545405754 is 4575045456.

6545405754 is a `hidden beast` number, since 6 + 5 + 4 + 540 + 57 + 54 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6545405759) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8962 + ... + 114765.

It is an arithmetic number, because the mean of its divisors is an integer number (591110520).

Almost surely, 2^6545405754 is an apocalyptic number.

6545405754 is an abundant number, since it is smaller than the sum of its proper divisors (7641246726).

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

6545405754 is a wasteful number, since it uses less digits than its factorization.

6545405754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126674 (or 126671 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 45.

The square root of 6545405754 is about 80903.6819557676. The cubic root of 6545405754 is about 1870.5910753170.

The spelling of 6545405754 in words is "six billion, five hundred forty-five million, four hundred five thousand, seven hundred fifty-four".