61792773431 has 2 divisors, whose sum is σ = 61792773432. Its totient is φ = 61792773430.

The previous prime is 61792773421. The next prime is 61792773451. The reversal of 61792773431 is 13437729716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61792773431 - 2¹⁰ = 61792772407 is a prime.

It is a super-2 number, since 2×61792773431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61792773431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61792773421) 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 as a sum of consecutive naturals, namely, 30896386715 + 30896386716.

It is an arithmetic number, because the mean of its divisors is an integer number (30896386716).

Almost surely, 2^61792773431 is an apocalyptic number.

61792773431 is a deficient number, since it is larger than the sum of its proper divisors (1).

61792773431 is an equidigital number, since it uses as much as digits as its factorization.

61792773431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The spelling of 61792773431 in words is "sixty-one billion, seven hundred ninety-two million, seven hundred seventy-three thousand, four hundred thirty-one".