61431052413 has 8 divisors (see below), whose sum is σ = 83250825376. Its totient is φ = 40282657200.

The previous prime is 61431052411. The next prime is 61431052427. The reversal of 61431052413 is 31425013416.

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

It is not a de Polignac number, because 61431052413 - 2¹ = 61431052411 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 (61431052411) 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, 167844223 + ... + 167844588.

It is an arithmetic number, because the mean of its divisors is an integer number (10406353172).

Almost surely, 2^61431052413 is an apocalyptic number.

It is an amenable number.

61431052413 is a deficient number, since it is larger than the sum of its proper divisors (21819772963).

61431052413 is a wasteful number, since it uses less digits than its factorization.

61431052413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335688875.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 61431052413 its reverse (31425013416), we get a palindrome (92856065829).

The spelling of 61431052413 in words is "sixty-one billion, four hundred thirty-one million, fifty-two thousand, four hundred thirteen".