2045072554457 has 8 divisors (see below), whose sum is σ = 2155778876160. Its totient is φ = 1934673325200.

The previous prime is 2045072554451. The next prime is 2045072554477. The reversal of 2045072554457 is 7544552705402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045072554457 - 2¹⁴ = 2045072538073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045072554451) 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, 76759433 + ... + 76786070.

It is an arithmetic number, because the mean of its divisors is an integer number (269472359520).

Almost surely, 2^{2045072554457} is an apocalyptic number.

It is an amenable number.

2045072554457 is a deficient number, since it is larger than the sum of its proper divisors (110706321703).

2045072554457 is a wasteful number, since it uses less digits than its factorization.

2045072554457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153546223.

The product of its (nonzero) digits is 7840000, while the sum is 50.

The spelling of 2045072554457 in words is "two trillion, forty-five billion, seventy-two million, five hundred fifty-four thousand, four hundred fifty-seven".