420072953771 has 2 divisors, whose sum is σ = 420072953772. Its totient is φ = 420072953770.

The previous prime is 420072953749. The next prime is 420072953813. The reversal of 420072953771 is 177359270024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420072953771 is a prime.

It is a super-2 number, since 2×420072953771² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420072950771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210036476885 + 210036476886.

It is an arithmetic number, because the mean of its divisors is an integer number (210036476886).

Almost surely, 2^420072953771 is an apocalyptic number.

420072953771 is a deficient number, since it is larger than the sum of its proper divisors (1).

420072953771 is an equidigital number, since it uses as much as digits as its factorization.

420072953771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 420072953771 in words is "four hundred twenty billion, seventy-two million, nine hundred fifty-three thousand, seven hundred seventy-one".