4540045697851 has 4 divisors (see below), whose sum is σ = 4540118108472. Its totient is φ = 4539973287232.

The previous prime is 4540045697819. The next prime is 4540045697893. The reversal of 4540045697851 is 1587965400454.

4540045697851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4540045697851 - 2⁵ = 4540045697819 is a prime.

It is a super-2 number, since 2×4540045697851² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4540045497851) 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, 36111181 + ... + 36236686.

It is an arithmetic number, because the mean of its divisors is an integer number (1135029527118).

Almost surely, 2^{4540045697851} is an apocalyptic number.

4540045697851 is a deficient number, since it is larger than the sum of its proper divisors (72410621).

4540045697851 is an equidigital number, since it uses as much as digits as its factorization.

4540045697851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72410620.

The product of its (nonzero) digits is 24192000, while the sum is 58.

The spelling of 4540045697851 in words is "four trillion, five hundred forty billion, forty-five million, six hundred ninety-seven thousand, eight hundred fifty-one".