61314228612 has 192 divisors, whose sum is σ = 199640896000. Its totient is φ = 16170658560.

The previous prime is 61314228611. The next prime is 61314228637. The reversal of 61314228612 is 21682241316.

It is a happy number.

61314228612 is a `hidden beast` number, since 6 + 1 + 3 + 14 + 2 + 28 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61314228611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 417912 + ... + 545232.

Almost surely, 2^61314228612 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 61314228612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99820448000).

61314228612 is an abundant number, since it is smaller than the sum of its proper divisors (138326667388).

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

61314228612 is a wasteful number, since it uses less digits than its factorization.

61314228612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127368 (or 127346 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

Adding to 61314228612 its reverse (21682241316), we get a palindrome (82996469928).

The spelling of 61314228612 in words is "sixty-one billion, three hundred fourteen million, two hundred twenty-eight thousand, six hundred twelve".