2539204450987 has 2 divisors, whose sum is σ = 2539204450988. Its totient is φ = 2539204450986.

The previous prime is 2539204450963. The next prime is 2539204451023. The reversal of 2539204450987 is 7890544029352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2539204450987 - 2³¹ = 2537056967339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2539204454987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269602225493 + 1269602225494.

It is an arithmetic number, because the mean of its divisors is an integer number (1269602225494).

Almost surely, 2^{2539204450987} is an apocalyptic number.

2539204450987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2539204450987 is an equidigital number, since it uses as much as digits as its factorization.

2539204450987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 2539204450987 in words is "two trillion, five hundred thirty-nine billion, two hundred four million, four hundred fifty thousand, nine hundred eighty-seven".