87682028678 has 32 divisors (see below), whose sum is σ = 139072868352. Its totient is φ = 41395435200.

The previous prime is 87682028677. The next prime is 87682028717.

87682028678 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87682028678² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 87682028678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87682028671) 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, 2523443 + ... + 2557953.

It is an arithmetic number, because the mean of its divisors is an integer number (4346027136).

Almost surely, 2^87682028678 is an apocalyptic number.

87682028678 is a deficient number, since it is larger than the sum of its proper divisors (51390839674).

87682028678 is a wasteful number, since it uses less digits than its factorization.

87682028678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35540.

The product of its (nonzero) digits is 28901376, while the sum is 62.

The spelling of 87682028678 in words is "eighty-seven billion, six hundred eighty-two million, twenty-eight thousand, six hundred seventy-eight".