4145457640451 has 4 divisors (see below), whose sum is σ = 4145527403112. Its totient is φ = 4145387877792.

The previous prime is 4145457640321. The next prime is 4145457640459. The reversal of 4145457640451 is 1540467545414.

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 4145457640451 - 2³⁸ = 3870579733507 is a prime.

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 4145457640451.

It is not an unprimeable number, because it can be changed into a prime (4145457640459) 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, 34792121 + ... + 34911066.

It is an arithmetic number, because the mean of its divisors is an integer number (1036381850778).

Almost surely, 2^{4145457640451} is an apocalyptic number.

4145457640451 is a deficient number, since it is larger than the sum of its proper divisors (69762661).

4145457640451 is an equidigital number, since it uses as much as digits as its factorization.

4145457640451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69762660.

The product of its (nonzero) digits is 5376000, while the sum is 50.

The spelling of 4145457640451 in words is "four trillion, one hundred forty-five billion, four hundred fifty-seven million, six hundred forty thousand, four hundred fifty-one".