61206107631 has 8 divisors (see below), whose sum is σ = 81817934640. Its totient is φ = 40699176192.

The previous prime is 61206107629. The next prime is 61206107687. The reversal of 61206107631 is 13670160216.

61206107631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61206107631 - 2¹ = 61206107629 is a prime.

It is a super-2 number, since 2×61206107631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61206107592 and 61206107601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61206106631) 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, 26222530 + ... + 26224863.

It is an arithmetic number, because the mean of its divisors is an integer number (10227241830).

Almost surely, 2^61206107631 is an apocalyptic number.

61206107631 is a deficient number, since it is larger than the sum of its proper divisors (20611827009).

61206107631 is a wasteful number, since it uses less digits than its factorization.

61206107631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52447785.

The product of its (nonzero) digits is 9072, while the sum is 33.

Adding to 61206107631 its reverse (13670160216), we get a palindrome (74876267847).

The spelling of 61206107631 in words is "sixty-one billion, two hundred six million, one hundred seven thousand, six hundred thirty-one".