87856509806348 has 6 divisors (see below), whose sum is σ = 153748892161116. Its totient is φ = 43928254903172.

The previous prime is 87856509806297. The next prime is 87856509806371. The reversal of 87856509806348 is 84360890565878.

It is a super-2 number, since 2×87856509806348² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10982063725790 + ... + 10982063725797.

It is an arithmetic number, because the mean of its divisors is an integer number (25624815360186).

Almost surely, 2^{87856509806348} is an apocalyptic number.

It is an amenable number.

87856509806348 is a deficient number, since it is larger than the sum of its proper divisors (65892382354768).

87856509806348 is a wasteful number, since it uses less digits than its factorization.

87856509806348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21964127451591 (or 21964127451589 counting only the distinct ones).

The product of its (nonzero) digits is 2786918400, while the sum is 77.

The spelling of 87856509806348 in words is "eighty-seven trillion, eight hundred fifty-six billion, five hundred nine million, eight hundred six thousand, three hundred forty-eight".