877199257956 has 96 divisors (see below), whose sum is σ = 2443326842880. Its totient is φ = 239493348864.

The previous prime is 877199257951. The next prime is 877199257969. The reversal of 877199257956 is 659752991778.

It is not an unprimeable number, because it can be changed into a prime (877199257951) 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 31 ways as a sum of consecutive naturals, for example, 1724395 + ... + 2174381.

It is an arithmetic number, because the mean of its divisors is an integer number (25451321280).

Almost surely, 2^877199257956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877199257956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221663421440).

877199257956 is an abundant number, since it is smaller than the sum of its proper divisors (1566127584924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

877199257956 is a wasteful number, since it uses less digits than its factorization.

877199257956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451033 (or 451031 counting only the distinct ones).

The product of its digits is 600112800, while the sum is 75.

The spelling of 877199257956 in words is "eight hundred seventy-seven billion, one hundred ninety-nine million, two hundred fifty-seven thousand, nine hundred fifty-six".