61352667431 has 16 divisors (see below), whose sum is σ = 67142060160. Its totient is φ = 55598749920.

The previous prime is 61352667403. The next prime is 61352667457. The reversal of 61352667431 is 13476625316.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61352667431 is a prime.

It is a super-2 number, since 2×61352667431² (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 (61352667401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14059856 + ... + 14064218.

It is an arithmetic number, because the mean of its divisors is an integer number (4196378760).

Almost surely, 2^61352667431 is an apocalyptic number.

61352667431 is a deficient number, since it is larger than the sum of its proper divisors (5789392729).

61352667431 is a wasteful number, since it uses less digits than its factorization.

61352667431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126.

The product of its digits is 544320, while the sum is 44.

The spelling of 61352667431 in words is "sixty-one billion, three hundred fifty-two million, six hundred sixty-seven thousand, four hundred thirty-one".