61444053263 has 8 divisors (see below), whose sum is σ = 62057784096. Its totient is φ = 60830428000.

The previous prime is 61444053259. The next prime is 61444053373. The reversal of 61444053263 is 36235044416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61444053263 - 2² = 61444053259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61444053563) 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, 1708598 + ... + 1744188.

It is an arithmetic number, because the mean of its divisors is an integer number (7757223012).

Almost surely, 2^61444053263 is an apocalyptic number.

61444053263 is a deficient number, since it is larger than the sum of its proper divisors (613730833).

61444053263 is a wasteful number, since it uses less digits than its factorization.

61444053263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52785.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 61444053263 its reverse (36235044416), we get a palindrome (97679097679).

The spelling of 61444053263 in words is "sixty-one billion, four hundred forty-four million, fifty-three thousand, two hundred sixty-three".