3544757554021 has 4 divisors (see below), whose sum is σ = 3548893794732. Its totient is φ = 3540621313312.

The previous prime is 3544757554003. The next prime is 3544757554081. The reversal of 3544757554021 is 1204557574453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2003609109121 + 1541148444900 = 1415489^2 + 1241430^2 .

It is a cyclic number.

It is not a de Polignac number, because 3544757554021 - 2⁵ = 3544757553989 is a prime.

It is a super-2 number, since 2×3544757554021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3544757554021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3544757554081) 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, 2068119070 + ... + 2068120783.

It is an arithmetic number, because the mean of its divisors is an integer number (887223448683).

Almost surely, 2^{3544757554021} is an apocalyptic number.

It is an amenable number.

3544757554021 is a deficient number, since it is larger than the sum of its proper divisors (4136240711).

3544757554021 is an equidigital number, since it uses as much as digits as its factorization.

3544757554021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136240710.

The product of its (nonzero) digits is 11760000, while the sum is 52.

The spelling of 3544757554021 in words is "three trillion, five hundred forty-four billion, seven hundred fifty-seven million, five hundred fifty-four thousand, twenty-one".