61634361244 has 6 divisors (see below), whose sum is σ = 107860132184. Its totient is φ = 30817180620.

The previous prime is 61634361233. The next prime is 61634361247. The reversal of 61634361244 is 44216343616.

It is a junction number, because it is equal to n+sod(n) for n = 61634361197 and 61634361206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61634361247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7704295152 + ... + 7704295159.

Almost surely, 2^61634361244 is an apocalyptic number.

It is an amenable number.

61634361244 is a deficient number, since it is larger than the sum of its proper divisors (46225770940).

61634361244 is a wasteful number, since it uses less digits than its factorization.

61634361244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15408590315 (or 15408590313 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The spelling of 61634361244 in words is "sixty-one billion, six hundred thirty-four million, three hundred sixty-one thousand, two hundred forty-four".