87856781480 has 32 divisors (see below), whose sum is σ = 212883741000. Its totient is φ = 32439426816.

The previous prime is 87856781461. The next prime is 87856781497. The reversal of 87856781480 is 8418765878.

It can be written as a sum of positive squares in 4 ways, for example, as 78510919204 + 9345862276 = 280198^2 + 96674^2 .

It is a super-3 number, since 3×87856781480³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84477155 + ... + 84478194.

Almost surely, 2^87856781480 is an apocalyptic number.

It is an amenable number.

87856781480 is an abundant number, since it is smaller than the sum of its proper divisors (125026959520).

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

87856781480 is a wasteful number, since it uses less digits than its factorization.

87856781480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168955373 (or 168955369 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 62.

The spelling of 87856781480 in words is "eighty-seven billion, eight hundred fifty-six million, seven hundred eighty-one thousand, four hundred eighty".