84980121599 has 2 divisors, whose sum is σ = 84980121600. Its totient is φ = 84980121598.

The previous prime is 84980121581. The next prime is 84980121617. The reversal of 84980121599 is 99512108948.

It is a balanced prime because it is at equal distance from previous prime (84980121581) and next prime (84980121617).

It is a cyclic number.

It is not a de Polignac number, because 84980121599 - 2²⁴ = 84963344383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84980124599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42490060799 + 42490060800.

It is an arithmetic number, because the mean of its divisors is an integer number (42490060800).

Almost surely, 2^84980121599 is an apocalyptic number.

84980121599 is a deficient number, since it is larger than the sum of its proper divisors (1).

84980121599 is an equidigital number, since it uses as much as digits as its factorization.

84980121599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The spelling of 84980121599 in words is "eighty-four billion, nine hundred eighty million, one hundred twenty-one thousand, five hundred ninety-nine".