1423501947979 has 2 divisors, whose sum is σ = 1423501947980. Its totient is φ = 1423501947978.

The previous prime is 1423501947913. The next prime is 1423501948031. The reversal of 1423501947979 is 9797491053241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1423501947979 - 2²¹ = 1423499850827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423501942979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711750973989 + 711750973990.

It is an arithmetic number, because the mean of its divisors is an integer number (711750973990).

Almost surely, 2^{1423501947979} is an apocalyptic number.

1423501947979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423501947979 is an equidigital number, since it uses as much as digits as its factorization.

1423501947979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 1423501947979 in words is "one trillion, four hundred twenty-three billion, five hundred one million, nine hundred forty-seven thousand, nine hundred seventy-nine".