200420040979 has 2 divisors, whose sum is σ = 200420040980. Its totient is φ = 200420040978.

The previous prime is 200420040937. The next prime is 200420040991. The reversal of 200420040979 is 979040024002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200420040979 - 2⁷ = 200420040851 is a prime.

It is not a weakly prime, because it can be changed into another prime (200420040479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100210020489 + 100210020490.

It is an arithmetic number, because the mean of its divisors is an integer number (100210020490).

Almost surely, 2^200420040979 is an apocalyptic number.

200420040979 is a deficient number, since it is larger than the sum of its proper divisors (1).

200420040979 is an equidigital number, since it uses as much as digits as its factorization.

200420040979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 200420040979 in words is "two hundred billion, four hundred twenty million, forty thousand, nine hundred seventy-nine".