1528327990537 has 2 divisors, whose sum is σ = 1528327990538. Its totient is φ = 1528327990536.

The previous prime is 1528327990507. The next prime is 1528327990663. The reversal of 1528327990537 is 7350997238251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1312905764041 + 215422226496 = 1145821^2 + 464136^2 .

It is a cyclic number.

It is not a de Polignac number, because 1528327990537 - 2³¹ = 1526180506889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1528327990507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764163995268 + 764163995269.

It is an arithmetic number, because the mean of its divisors is an integer number (764163995269).

Almost surely, 2^{1528327990537} is an apocalyptic number.

It is an amenable number.

1528327990537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528327990537 is an equidigital number, since it uses as much as digits as its factorization.

1528327990537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 1528327990537 in words is "one trillion, five hundred twenty-eight billion, three hundred twenty-seven million, nine hundred ninety thousand, five hundred thirty-seven".