1974662048539 has 2 divisors, whose sum is σ = 1974662048540. Its totient is φ = 1974662048538.

The previous prime is 1974662048531. The next prime is 1974662048621. The reversal of 1974662048539 is 9358402664791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1974662048539 - 2³ = 1974662048531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1974662048531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987331024269 + 987331024270.

It is an arithmetic number, because the mean of its divisors is an integer number (987331024270).

It is a 1-persistent number, because it is pandigital, but 2⋅1974662048539 = 3949324097078 is not.

Almost surely, 2^{1974662048539} is an apocalyptic number.

1974662048539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974662048539 is an equidigital number, since it uses as much as digits as its factorization.

1974662048539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 1974662048539 in words is "one trillion, nine hundred seventy-four billion, six hundred sixty-two million, forty-eight thousand, five hundred thirty-nine".