61277357023 has 2 divisors, whose sum is σ = 61277357024. Its totient is φ = 61277357022.

The previous prime is 61277356997. The next prime is 61277357041. The reversal of 61277357023 is 32075377216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61277357023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61277357093) 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, 30638678511 + 30638678512.

It is an arithmetic number, because the mean of its divisors is an integer number (30638678512).

Almost surely, 2^61277357023 is an apocalyptic number.

61277357023 is a deficient number, since it is larger than the sum of its proper divisors (1).

61277357023 is an equidigital number, since it uses as much as digits as its factorization.

61277357023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 43.

The spelling of 61277357023 in words is "sixty-one billion, two hundred seventy-seven million, three hundred fifty-seven thousand, twenty-three".