87428068666955 has 8 divisors (see below), whose sum is σ = 107145888409152. Its totient is φ = 68454317594368.

The previous prime is 87428068666903. The next prime is 87428068666963. The reversal of 87428068666955 is 55966686082478.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87428068666955 - 2¹⁸ = 87428068404811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87428068666955.

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, 186017167142 + ... + 186017167611.

It is an arithmetic number, because the mean of its divisors is an integer number (13393236051144).

Almost surely, 2^{87428068666955} is an apocalyptic number.

87428068666955 is a deficient number, since it is larger than the sum of its proper divisors (19717819742197).

87428068666955 is a wasteful number, since it uses less digits than its factorization.

87428068666955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372034334805.

The product of its (nonzero) digits is 8360755200, while the sum is 80.

The spelling of 87428068666955 in words is "eighty-seven trillion, four hundred twenty-eight billion, sixty-eight million, six hundred sixty-six thousand, nine hundred fifty-five".