85597970648 has 64 divisors (see below), whose sum is σ = 170962371360. Its totient is φ = 40039151616.

The previous prime is 85597970603. The next prime is 85597970651. The reversal of 85597970648 is 84607979558.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16078115 + ... + 16083437.

Almost surely, 2^85597970648 is an apocalyptic number.

It is an amenable number.

85597970648 is a deficient number, since it is larger than the sum of its proper divisors (85364400712).

85597970648 is a wasteful number, since it uses less digits than its factorization.

85597970648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6032 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 85597970648 in words is "eighty-five billion, five hundred ninety-seven million, nine hundred seventy thousand, six hundred forty-eight".