987715197472 has 24 divisors (see below), whose sum is σ = 1944696502476. Its totient is φ = 493824022272.

The previous prime is 987715197461. The next prime is 987715197481. The reversal of 987715197472 is 274791517789.

It is a happy number.

987715197472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 944947303056 + 42767894416 = 972084^2 + 206804^2 .

It is a super-2 number, since 2×987715197472² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 987715197398 and 987715197407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567843 + ... + 1515874.

Almost surely, 2^987715197472 is an apocalyptic number.

It is an amenable number.

987715197472 is a deficient number, since it is larger than the sum of its proper divisors (956981305004).

987715197472 is a wasteful number, since it uses less digits than its factorization.

987715197472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098540 (or 2098532 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 67.

The spelling of 987715197472 in words is "nine hundred eighty-seven billion, seven hundred fifteen million, one hundred ninety-seven thousand, four hundred seventy-two".