62917986389 has 2 divisors, whose sum is σ = 62917986390. Its totient is φ = 62917986388.

The previous prime is 62917986379. The next prime is 62917986409. The reversal of 62917986389 is 98368971926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35431662289 + 27486324100 = 188233^2 + 165790^2 .

It is a cyclic number.

It is not a de Polignac number, because 62917986389 - 2²⁰ = 62916937813 is a prime.

It is a super-2 number, since 2×62917986389² (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 (62917986379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31458993194 + 31458993195.

It is an arithmetic number, because the mean of its divisors is an integer number (31458993195).

Almost surely, 2^62917986389 is an apocalyptic number.

It is an amenable number.

62917986389 is a deficient number, since it is larger than the sum of its proper divisors (1).

62917986389 is an equidigital number, since it uses as much as digits as its factorization.

62917986389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 68.

The spelling of 62917986389 in words is "sixty-two billion, nine hundred seventeen million, nine hundred eighty-six thousand, three hundred eighty-nine".