877254452778 has 64 divisors (see below), whose sum is σ = 1941743591424. Its totient is φ = 261985752000.

The previous prime is 877254452761. The next prime is 877254452861.

877254452778 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12105300 + ... + 12177552.

It is an arithmetic number, because the mean of its divisors is an integer number (30339743616).

Almost surely, 2^877254452778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877254452778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970871795712).

877254452778 is an abundant number, since it is smaller than the sum of its proper divisors (1064489138646).

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

877254452778 is a wasteful number, since it uses less digits than its factorization.

877254452778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74931.

The product of its digits is 245862400, while the sum is 66.

The spelling of 877254452778 in words is "eight hundred seventy-seven billion, two hundred fifty-four million, four hundred fifty-two thousand, seven hundred seventy-eight".