3540005262561 has 8 divisors (see below), whose sum is σ = 4721545994464. Its totient is φ = 2359234019520.

The previous prime is 3540005262539. The next prime is 3540005262571. The reversal of 3540005262561 is 1652625000453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3540005262561 - 2¹⁴ = 3540005246177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3540005262571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192361480 + ... + 192379881.

It is an arithmetic number, because the mean of its divisors is an integer number (590193249308).

Almost surely, 2^{3540005262561} is an apocalyptic number.

It is an amenable number.

3540005262561 is a deficient number, since it is larger than the sum of its proper divisors (1181540731903).

3540005262561 is a wasteful number, since it uses less digits than its factorization.

3540005262561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384744431.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 3540005262561 in words is "three trillion, five hundred forty billion, five million, two hundred sixty-two thousand, five hundred sixty-one".