84980451499 has 4 divisors (see below), whose sum is σ = 87053145480. Its totient is φ = 82907757520.

The previous prime is 84980451461. The next prime is 84980451527. The reversal of 84980451499 is 99415408948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84980451499 - 2⁷ = 84980451371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84980451419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036346929 + ... + 1036347010.

It is an arithmetic number, because the mean of its divisors is an integer number (21763286370).

Almost surely, 2^84980451499 is an apocalyptic number.

84980451499 is a deficient number, since it is larger than the sum of its proper divisors (2072693981).

84980451499 is a wasteful number, since it uses less digits than its factorization.

84980451499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072693980.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 84980451499 in words is "eighty-four billion, nine hundred eighty million, four hundred fifty-one thousand, four hundred ninety-nine".