8361477562880 has 160 divisors (see below), whose sum is σ = 21623217994224. Its totient is φ = 3082578886656.

The previous prime is 8361477562871. The next prime is 8361477562913. The reversal of 8361477562880 is 882657741638.

It can be written as a sum of positive squares in 8 ways, for example, as 750676685056 + 7610800877824 = 866416^2 + 2758768^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21539462 + ... + 21924218.

Almost surely, 2^{8361477562880} is an apocalyptic number.

8361477562880 is a gapful number since it is divisible by the number (80) 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 8361477562880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10811608997112).

8361477562880 is an abundant number, since it is smaller than the sum of its proper divisors (13261740431344).

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

8361477562880 is a wasteful number, since it uses less digits than its factorization.

8361477562880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385446 (or 385430 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 8361477562880 in words is "eight trillion, three hundred sixty-one billion, four hundred seventy-seven million, five hundred sixty-two thousand, eight hundred eighty".