1025289915987 has 16 divisors (see below), whose sum is σ = 1382965046528. Its totient is φ = 675596077920.

The previous prime is 1025289915941. The next prime is 1025289916019. The reversal of 1025289915987 is 7895199825201.

1025289915987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025289915987 - 2¹⁰ = 1025289914963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025289915917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3010564 + ... + 3333777.

It is an arithmetic number, because the mean of its divisors is an integer number (86435315408).

Almost surely, 2^{1025289915987} is an apocalyptic number.

1025289915987 is a deficient number, since it is larger than the sum of its proper divisors (357675130541).

1025289915987 is a wasteful number, since it uses less digits than its factorization.

1025289915987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344970.

The product of its (nonzero) digits is 32659200, while the sum is 66.

The spelling of 1025289915987 in words is "one trillion, twenty-five billion, two hundred eighty-nine million, nine hundred fifteen thousand, nine hundred eighty-seven".