61676694352 has 240 divisors, whose sum is σ = 159775815360. Its totient is φ = 22793508864.

The previous prime is 61676694323. The next prime is 61676694377. The reversal of 61676694352 is 25349667616.

It is a happy number.

It is a Cunningham number, because it is equal to 3951³+1.

It is a junction number, because it is equal to n+sod(n) for n = 61676694293 and 61676694302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14134123 + ... + 14138485.

It is an arithmetic number, because the mean of its divisors is an integer number (665732564).

Almost surely, 2^61676694352 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 61676694352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79887907680).

61676694352 is an abundant number, since it is smaller than the sum of its proper divisors (98099121008).

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

61676694352 is a wasteful number, since it uses less digits than its factorization.

61676694352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490 (or 4477 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 55.

The spelling of 61676694352 in words is "sixty-one billion, six hundred seventy-six million, six hundred ninety-four thousand, three hundred fifty-two".