61435653244 has 24 divisors (see below), whose sum is σ = 122887346400. Its totient is φ = 26326128576.

The previous prime is 61435653241. The next prime is 61435653299. The reversal of 61435653244 is 44235653416.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61435653244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61435653241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81282 + ... + 359830.

It is an arithmetic number, because the mean of its divisors is an integer number (5120306100).

Almost surely, 2^61435653244 is an apocalyptic number.

It is an amenable number.

61435653244 is an abundant number, since it is smaller than the sum of its proper divisors (61451693156).

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

61435653244 is a wasteful number, since it uses less digits than its factorization.

61435653244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286437 (or 286435 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The spelling of 61435653244 in words is "sixty-one billion, four hundred thirty-five million, six hundred fifty-three thousand, two hundred forty-four".