987971514425 has 24 divisors (see below), whose sum is σ = 1400165895552. Its totient is φ = 677432736000.

The previous prime is 987971514389. The next prime is 987971514461. The reversal of 987971514425 is 524415179789.

It is an interprime number because it is at equal distance from previous prime (987971514389) and next prime (987971514461).

It is not a de Polignac number, because 987971514425 - 2⁸ = 987971514169 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3720065 + ... + 3976785.

It is an arithmetic number, because the mean of its divisors is an integer number (58340245648).

Almost surely, 2^987971514425 is an apocalyptic number.

It is an amenable number.

987971514425 is a deficient number, since it is larger than the sum of its proper divisors (412194381127).

987971514425 is a wasteful number, since it uses less digits than its factorization.

987971514425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278729 (or 278724 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 62.

The spelling of 987971514425 in words is "nine hundred eighty-seven billion, nine hundred seventy-one million, five hundred fourteen thousand, four hundred twenty-five".