61363871239 has 16 divisors (see below), whose sum is σ = 68765875200. Its totient is φ = 54275880960.

The previous prime is 61363871237. The next prime is 61363871263. The reversal of 61363871239 is 93217836316.

It is a cyclic number.

It is not a de Polignac number, because 61363871239 - 2¹ = 61363871237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61363871192 and 61363871201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61363871237) 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 15 ways as a sum of consecutive naturals, for example, 130839 + ... + 373960.

It is an arithmetic number, because the mean of its divisors is an integer number (4297867200).

Almost surely, 2^61363871239 is an apocalyptic number.

61363871239 is a deficient number, since it is larger than the sum of its proper divisors (7402003961).

61363871239 is a wasteful number, since it uses less digits than its factorization.

61363871239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505110.

The product of its digits is 979776, while the sum is 49.

The spelling of 61363871239 in words is "sixty-one billion, three hundred sixty-three million, eight hundred seventy-one thousand, two hundred thirty-nine".