45049798049 has 2 divisors, whose sum is σ = 45049798050. Its totient is φ = 45049798048.

The previous prime is 45049798039. The next prime is 45049798067. The reversal of 45049798049 is 94089794054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39862917649 + 5186880400 = 199657^2 + 72020^2 .

It is a cyclic number.

It is not a de Polignac number, because 45049798049 - 2¹⁶ = 45049732513 is a prime.

It is not a weakly prime, because it can be changed into another prime (45049798009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22524899024 + 22524899025.

It is an arithmetic number, because the mean of its divisors is an integer number (22524899025).

Almost surely, 2^45049798049 is an apocalyptic number.

It is an amenable number.

45049798049 is a deficient number, since it is larger than the sum of its proper divisors (1).

45049798049 is an equidigital number, since it uses as much as digits as its factorization.

45049798049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 45049798049 in words is "forty-five billion, forty-nine million, seven hundred ninety-eight thousand, forty-nine".