987025948821 has 40 divisors (see below), whose sum is σ = 1608606087264. Its totient is φ = 598153157280.

The previous prime is 987025948807. The next prime is 987025948837. The reversal of 987025948821 is 128849520789.

987025948821 is a `hidden beast` number, since 9 + 87 + 0 + 2 + 59 + 488 + 21 = 666.

987025948821 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 987025948821 - 2⁶ = 987025948757 is a prime.

It is a super-2 number, since 2×987025948821² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987025941821) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15102811 + ... + 15168023.

Almost surely, 2^987025948821 is an apocalyptic number.

It is an amenable number.

987025948821 is a deficient number, since it is larger than the sum of its proper divisors (621580138443).

987025948821 is a wasteful number, since it uses less digits than its factorization.

987025948821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82223 (or 82214 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 987025948821 in words is "nine hundred eighty-seven billion, twenty-five million, nine hundred forty-eight thousand, eight hundred twenty-one".