87638278948 has 24 divisors (see below), whose sum is σ = 167317948224. Its totient is φ = 39833556000.

The previous prime is 87638278913. The next prime is 87638278961. The reversal of 87638278948 is 84987283678.

It is a super-3 number, since 3×87638278948³ (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, 1138273 + ... + 1212823.

It is an arithmetic number, because the mean of its divisors is an integer number (6971581176).

Almost surely, 2^87638278948 is an apocalyptic number.

It is an amenable number.

87638278948 is a deficient number, since it is larger than the sum of its proper divisors (79679669276).

87638278948 is a wasteful number, since it uses less digits than its factorization.

87638278948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101283 (or 101281 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 70.

The spelling of 87638278948 in words is "eighty-seven billion, six hundred thirty-eight million, two hundred seventy-eight thousand, nine hundred forty-eight".