2045072554477 has 2 divisors, whose sum is σ = 2045072554478. Its totient is φ = 2045072554476.

The previous prime is 2045072554451. The next prime is 2045072554487. The reversal of 2045072554477 is 7744552705402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918061573481 + 127010980996 = 1384941^2 + 356386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045072554477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045072554417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022536277238 + 1022536277239.

It is an arithmetic number, because the mean of its divisors is an integer number (1022536277239).

Almost surely, 2^{2045072554477} is an apocalyptic number.

It is an amenable number.

2045072554477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045072554477 is an equidigital number, since it uses as much as digits as its factorization.

2045072554477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976000, while the sum is 52.

The spelling of 2045072554477 in words is "two trillion, forty-five billion, seventy-two million, five hundred fifty-four thousand, four hundred seventy-seven".