842774477248 has 112 divisors (see below), whose sum is σ = 1913608624896. Its totient is φ = 364523765760.

The previous prime is 842774477239. The next prime is 842774477249.

842774477248 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 842774477248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842774477249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2990215 + ... + 3259897.

Almost surely, 2^842774477248 is an apocalyptic number.

842774477248 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842774477248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956804312448).

842774477248 is an abundant number, since it is smaller than the sum of its proper divisors (1070834147648).

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

842774477248 is a wasteful number, since it uses less digits than its factorization.

842774477248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269922 (or 269912 counting only the distinct ones).

The product of its digits is 157351936, while the sum is 64.

The spelling of 842774477248 in words is "eight hundred forty-two billion, seven hundred seventy-four million, four hundred seventy-seven thousand, two hundred forty-eight".