987020673593 has 2 divisors, whose sum is σ = 987020673594. Its totient is φ = 987020673592.

The previous prime is 987020673571. The next prime is 987020673619. The reversal of 987020673593 is 395376020789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904690127104 + 82330546489 = 951152^2 + 286933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987020673593 is a prime.

It is not a weakly prime, because it can be changed into another prime (987020673193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493510336796 + 493510336797.

It is an arithmetic number, because the mean of its divisors is an integer number (493510336797).

Almost surely, 2^987020673593 is an apocalyptic number.

It is an amenable number.

987020673593 is a deficient number, since it is larger than the sum of its proper divisors (1).

987020673593 is an equidigital number, since it uses as much as digits as its factorization.

987020673593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 987020673593 in words is "nine hundred eighty-seven billion, twenty million, six hundred seventy-three thousand, five hundred ninety-three".