86642600428 has 24 divisors (see below), whose sum is σ = 155466843840. Its totient is φ = 42227608080.

The previous prime is 86642600353. The next prime is 86642600449. The reversal of 86642600428 is 82400624668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428518 + ... + 597421.

It is an arithmetic number, because the mean of its divisors is an integer number (6477785160).

Almost surely, 2^86642600428 is an apocalyptic number.

It is an amenable number.

86642600428 is a deficient number, since it is larger than the sum of its proper divisors (68824243412).

86642600428 is a wasteful number, since it uses less digits than its factorization.

86642600428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026477 (or 1026475 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 86642600428 in words is "eighty-six billion, six hundred forty-two million, six hundred thousand, four hundred twenty-eight".