62020399981 has 2 divisors, whose sum is σ = 62020399982. Its totient is φ = 62020399980.

The previous prime is 62020399951. The next prime is 62020400011. The reversal of 62020399981 is 18999302026.

It is a balanced prime because it is at equal distance from previous prime (62020399951) and next prime (62020400011).

It can be written as a sum of positive squares in only one way, i.e., 61419708900 + 600691081 = 247830^2 + 24509^2 .

It is a cyclic number.

It is not a de Polignac number, because 62020399981 - 2¹⁹ = 62019875693 is a prime.

It is a super-2 number, since 2×62020399981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62020399901) 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, 31010199990 + 31010199991.

It is an arithmetic number, because the mean of its divisors is an integer number (31010199991).

Almost surely, 2^62020399981 is an apocalyptic number.

It is an amenable number.

62020399981 is a deficient number, since it is larger than the sum of its proper divisors (1).

62020399981 is an equidigital number, since it uses as much as digits as its factorization.

62020399981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 62020399981 in words is "sixty-two billion, twenty million, three hundred ninety-nine thousand, nine hundred eighty-one".