6361861231264 has 192 divisors, whose sum is σ = 16547948524800. Its totient is φ = 2334805401600.

The previous prime is 6361861231261. The next prime is 6361861231303. The reversal of 6361861231264 is 4621321681636.

It is not an unprimeable number, because it can be changed into a prime (6361861231261) 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, 1843942 + ... + 4015450.

It is an arithmetic number, because the mean of its divisors is an integer number (86187231900).

Almost surely, 2^{6361861231264} 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 6361861231264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8273974262400).

6361861231264 is an abundant number, since it is smaller than the sum of its proper divisors (10186087293536).

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

6361861231264 is a wasteful number, since it uses less digits than its factorization.

6361861231264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171607 (or 2171599 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The spelling of 6361861231264 in words is "six trillion, three hundred sixty-one billion, eight hundred sixty-one million, two hundred thirty-one thousand, two hundred sixty-four".