80421463753 has 2 divisors, whose sum is σ = 80421463754. Its totient is φ = 80421463752.

The previous prime is 80421463747. The next prime is 80421463789. The reversal of 80421463753 is 35736412408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76921913104 + 3499550649 = 277348^2 + 59157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80421463753 is a prime.

It is a super-2 number, since 2×80421463753² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80421463453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40210731876 + 40210731877.

It is an arithmetic number, because the mean of its divisors is an integer number (40210731877).

Almost surely, 2^80421463753 is an apocalyptic number.

It is an amenable number.

80421463753 is a deficient number, since it is larger than the sum of its proper divisors (1).

80421463753 is an equidigital number, since it uses as much as digits as its factorization.

80421463753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 80421463753 in words is "eighty billion, four hundred twenty-one million, four hundred sixty-three thousand, seven hundred fifty-three".