69678203381 has 2 divisors, whose sum is σ = 69678203382. Its totient is φ = 69678203380.

The previous prime is 69678203363. The next prime is 69678203383. The reversal of 69678203381 is 18330287696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69121668100 + 556535281 = 262910^2 + 23591^2 .

It is a cyclic number.

It is not a de Polignac number, because 69678203381 - 2²² = 69674009077 is a prime.

It is a super-2 number, since 2×69678203381² (a number of 22 digits) contains 22 as substring.

Together with 69678203383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69678203383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34839101690 + 34839101691.

It is an arithmetic number, because the mean of its divisors is an integer number (34839101691).

Almost surely, 2^69678203381 is an apocalyptic number.

It is an amenable number.

69678203381 is a deficient number, since it is larger than the sum of its proper divisors (1).

69678203381 is an equidigital number, since it uses as much as digits as its factorization.

69678203381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 69678203381 in words is "sixty-nine billion, six hundred seventy-eight million, two hundred three thousand, three hundred eighty-one".