6493854240 has 144 divisors (see below), whose sum is σ = 22981166208. Its totient is φ = 1731684096.

The previous prime is 6493854229. The next prime is 6493854277. The reversal of 6493854240 is 424583946.

6493854240 is a `hidden beast` number, since 6 + 493 + 85 + 42 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44632 + ... + 122391.

It is an arithmetic number, because the mean of its divisors is an integer number (159591432).

Almost surely, 2^6493854240 is an apocalyptic number.

6493854240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6493854240 is an abundant number, since it is smaller than the sum of its proper divisors (16487311968).

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

6493854240 is a wasteful number, since it uses less digits than its factorization.

6493854240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167053 (or 167033 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 6493854240 is about 80584.4540838988. The cubic root of 6493854240 is about 1865.6672104285.

The spelling of 6493854240 in words is "six billion, four hundred ninety-three million, eight hundred fifty-four thousand, two hundred forty".