61526427137723 has 2 divisors, whose sum is σ = 61526427137724. Its totient is φ = 61526427137722.

The previous prime is 61526427137639. The next prime is 61526427137779. The reversal of 61526427137723 is 32773172462516.

It is an a-pointer prime, because the next prime (61526427137779) can be obtained adding 61526427137723 to its sum of digits (56).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61526427137723 is a prime.

It is not a weakly prime, because it can be changed into another prime (61526427137323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30763213568861 + 30763213568862.

It is an arithmetic number, because the mean of its divisors is an integer number (30763213568862).

Almost surely, 2^{61526427137723} is an apocalyptic number.

61526427137723 is a deficient number, since it is larger than the sum of its proper divisors (1).

61526427137723 is an equidigital number, since it uses as much as digits as its factorization.

61526427137723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 56.

The spelling of 61526427137723 in words is "sixty-one trillion, five hundred twenty-six billion, four hundred twenty-seven million, one hundred thirty-seven thousand, seven hundred twenty-three".