987906267472 has 80 divisors (see below), whose sum is σ = 1986178432000. Its totient is φ = 475515048960.

The previous prime is 987906267457. The next prime is 987906267479. The reversal of 987906267472 is 274762609789.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 987906267398 and 987906267407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987906267479) 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, 158900908 + ... + 158907124.

It is an arithmetic number, because the mean of its divisors is an integer number (24827230400).

Almost surely, 2^987906267472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987906267472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993089216000).

987906267472 is an abundant number, since it is smaller than the sum of its proper divisors (998272164528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987906267472 is a wasteful number, since it uses less digits than its factorization.

987906267472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884 (or 7878 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 67.

The spelling of 987906267472 in words is "nine hundred eighty-seven billion, nine hundred six million, two hundred sixty-seven thousand, four hundred seventy-two".