69890619923 has 2 divisors, whose sum is σ = 69890619924. Its totient is φ = 69890619922.

The previous prime is 69890619907. The next prime is 69890620001. The reversal of 69890619923 is 32991609896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69890619923 - 2⁴ = 69890619907 is a prime.

It is not a weakly prime, because it can be changed into another prime (69890619023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34945309961 + 34945309962.

It is an arithmetic number, because the mean of its divisors is an integer number (34945309962).

Almost surely, 2^69890619923 is an apocalyptic number.

69890619923 is a deficient number, since it is larger than the sum of its proper divisors (1).

69890619923 is an equidigital number, since it uses as much as digits as its factorization.

69890619923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 69890619923 in words is "sixty-nine billion, eight hundred ninety million, six hundred nineteen thousand, nine hundred twenty-three".