870749947077 has 32 divisors (see below), whose sum is σ = 1225723576320. Its totient is φ = 548321140800.

The previous prime is 870749947069. The next prime is 870749947087. The reversal of 870749947077 is 770749947078.

It is not a de Polignac number, because 870749947077 - 2³ = 870749947069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870749947007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31936983 + ... + 31964235.

It is an arithmetic number, because the mean of its divisors is an integer number (38303861760).

Almost surely, 2^870749947077 is an apocalyptic number.

It is an amenable number.

870749947077 is a deficient number, since it is larger than the sum of its proper divisors (354973629243).

870749947077 is a wasteful number, since it uses less digits than its factorization.

870749947077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28913.

The product of its (nonzero) digits is 174254976, while the sum is 69.

Subtracting from 870749947077 its reverse (770749947078), we obtain a palindrome (99999999999).

The spelling of 870749947077 in words is "eight hundred seventy billion, seven hundred forty-nine million, nine hundred forty-seven thousand, seventy-seven".