62990687989 has 2 divisors, whose sum is σ = 62990687990. Its totient is φ = 62990687988.

The previous prime is 62990687983. The next prime is 62990687993. The reversal of 62990687989 is 98978609926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46341172900 + 16649515089 = 215270^2 + 129033^2 .

It is a cyclic number.

It is not a de Polignac number, because 62990687989 - 2⁷ = 62990687861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62990687983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31495343994 + 31495343995.

It is an arithmetic number, because the mean of its divisors is an integer number (31495343995).

Almost surely, 2^62990687989 is an apocalyptic number.

It is an amenable number.

62990687989 is a deficient number, since it is larger than the sum of its proper divisors (1).

62990687989 is an equidigital number, since it uses as much as digits as its factorization.

62990687989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211631616, while the sum is 73.

The spelling of 62990687989 in words is "sixty-two billion, nine hundred ninety million, six hundred eighty-seven thousand, nine hundred eighty-nine".