84002420053 has 2 divisors, whose sum is σ = 84002420054. Its totient is φ = 84002420052.

The previous prime is 84002420011. The next prime is 84002420081. The reversal of 84002420053 is 35002420048.

It is an a-pointer prime, because the next prime (84002420081) can be obtained adding 84002420053 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57673463409 + 26328956644 = 240153^2 + 162262^2 .

It is a cyclic number.

It is not a de Polignac number, because 84002420053 - 2²⁵ = 83968865621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84002420153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42001210026 + 42001210027.

It is an arithmetic number, because the mean of its divisors is an integer number (42001210027).

Almost surely, 2^84002420053 is an apocalyptic number.

It is an amenable number.

84002420053 is a deficient number, since it is larger than the sum of its proper divisors (1).

84002420053 is an equidigital number, since it uses as much as digits as its factorization.

84002420053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 84002420053 in words is "eighty-four billion, two million, four hundred twenty thousand, fifty-three".