61274344347216 has 1280 divisors, whose sum is σ = 245408292864000. Its totient is φ = 14121365299200.

The previous prime is 61274344347199. The next prime is 61274344347241.

It is a happy number.

61274344347216 is a `hidden beast` number, since 6 + 1 + 2 + 7 + 43 + 44 + 347 + 216 = 666.

61274344347216 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1997388070 + ... + 1997418746.

It is an arithmetic number, because the mean of its divisors is an integer number (191725228800).

Almost surely, 2^{61274344347216} is an apocalyptic number.

61274344347216 is a gapful number since it is divisible by the number (66) 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 61274344347216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122704146432000).

61274344347216 is an abundant number, since it is smaller than the sum of its proper divisors (184133948516784).

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

61274344347216 is a wasteful number, since it uses less digits than its factorization.

61274344347216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30905 (or 30893 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 61274344347216 in words is "sixty-one trillion, two hundred seventy-four billion, three hundred forty-four million, three hundred forty-seven thousand, two hundred sixteen".