61343142263 has 8 divisors (see below), whose sum is σ = 67144827456. Its totient is φ = 55696168800.

The previous prime is 61343142251. The next prime is 61343142277. The reversal of 61343142263 is 36224134316.

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 61343142263 - 2⁴ = 61343142247 is a prime.

It is a super-2 number, since 2×61343142263² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61343142283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38677103 + ... + 38678688.

It is an arithmetic number, because the mean of its divisors is an integer number (8393103432).

Almost surely, 2^61343142263 is an apocalyptic number.

61343142263 is a deficient number, since it is larger than the sum of its proper divisors (5801685193).

61343142263 is a wasteful number, since it uses less digits than its factorization.

61343142263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77355865.

The product of its digits is 62208, while the sum is 35.

Adding to 61343142263 its reverse (36224134316), we get a palindrome (97567276579).

The spelling of 61343142263 in words is "sixty-one billion, three hundred forty-three million, one hundred forty-two thousand, two hundred sixty-three".