69612000391 has 2 divisors, whose sum is σ = 69612000392. Its totient is φ = 69612000390.

The previous prime is 69612000389. The next prime is 69612000421. The reversal of 69612000391 is 19300021696.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69612000391 - 2¹ = 69612000389 is a prime.

Together with 69612000389, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 69612000391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69612000301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34806000195 + 34806000196.

It is an arithmetic number, because the mean of its divisors is an integer number (34806000196).

Almost surely, 2^69612000391 is an apocalyptic number.

69612000391 is a deficient number, since it is larger than the sum of its proper divisors (1).

69612000391 is an equidigital number, since it uses as much as digits as its factorization.

69612000391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 69612000391 in words is "sixty-nine billion, six hundred twelve million, three hundred ninety-one", and thus it is an aban number.