62042138681 has 2 divisors, whose sum is σ = 62042138682. Its totient is φ = 62042138680.

The previous prime is 62042138677. The next prime is 62042138729. The reversal of 62042138681 is 18683124026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51817693225 + 10224445456 = 227635^2 + 101116^2 .

It is a cyclic number.

It is not a de Polignac number, because 62042138681 - 2² = 62042138677 is a prime.

It is a super-2 number, since 2×62042138681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (62042138611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31021069340 + 31021069341.

It is an arithmetic number, because the mean of its divisors is an integer number (31021069341).

Almost surely, 2^62042138681 is an apocalyptic number.

It is an amenable number.

62042138681 is a deficient number, since it is larger than the sum of its proper divisors (1).

62042138681 is an equidigital number, since it uses as much as digits as its factorization.

62042138681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 62042138681 in words is "sixty-two billion, forty-two million, one hundred thirty-eight thousand, six hundred eighty-one".