6540534792 has 96 divisors (see below), whose sum is σ = 19557326880. Its totient is φ = 1958081280.

The previous prime is 6540534761. The next prime is 6540534821. The reversal of 6540534792 is 2974350456.

6540534792 is a `hidden beast` number, since 6 + 5 + 40 + 534 + 79 + 2 = 666.

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, 15988 + ... + 115484.

It is an arithmetic number, because the mean of its divisors is an integer number (203722155).

Almost surely, 2^6540534792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6540534792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9778663440).

6540534792 is an abundant number, since it is smaller than the sum of its proper divisors (13016792088).

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

6540534792 is a wasteful number, since it uses less digits than its factorization.

6540534792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99603 (or 99596 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 6540534792 is about 80873.5728900362. The cubic root of 6540534792 is about 1870.1269411572.

The spelling of 6540534792 in words is "six billion, five hundred forty million, five hundred thirty-four thousand, seven hundred ninety-two".