85392987477 has 8 divisors (see below), whose sum is σ = 130122647616. Its totient is φ = 48795992832.

The previous prime is 85392987473. The next prime is 85392987481. The reversal of 85392987477 is 77478929358.

It is an interprime number because it is at equal distance from previous prime (85392987473) and next prime (85392987481).

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

It is not a de Polignac number, because 85392987477 - 2² = 85392987473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85392987473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2033166348 + ... + 2033166389.

It is an arithmetic number, because the mean of its divisors is an integer number (16265330952).

Almost surely, 2^85392987477 is an apocalyptic number.

It is an amenable number.

85392987477 is a deficient number, since it is larger than the sum of its proper divisors (44729660139).

85392987477 is a wasteful number, since it uses less digits than its factorization.

85392987477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066332747.

The product of its digits is 213373440, while the sum is 69.

The spelling of 85392987477 in words is "eighty-five billion, three hundred ninety-two million, nine hundred eighty-seven thousand, four hundred seventy-seven".