40539068560 has 20 divisors (see below), whose sum is σ = 94253334588. Its totient is φ = 16215627392.

The previous prime is 40539068551. The next prime is 40539068561. The reversal of 40539068560 is 6586093504.

It can be written as a sum of positive squares in 2 ways, for example, as 26456974336 + 14082094224 = 162656^2 + 118668^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 40539068560.

It is not an unprimeable number, because it can be changed into a prime (40539068561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253369099 + ... + 253369258.

Almost surely, 2^40539068560 is an apocalyptic number.

40539068560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40539068560 is an abundant number, since it is smaller than the sum of its proper divisors (53714266028).

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

40539068560 is a wasteful number, since it uses less digits than its factorization.

40539068560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506738370 (or 506738364 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 40539068560 in words is "forty billion, five hundred thirty-nine million, sixty-eight thousand, five hundred sixty".