84427696451 has 16 divisors (see below), whose sum is σ = 97929321984. Its totient is φ = 71288610624.

The previous prime is 84427696349. The next prime is 84427696471. The reversal of 84427696451 is 15469672448.

It is not a de Polignac number, because 84427696451 - 2¹⁸ = 84427434307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84427696471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322706 + ... + 522488.

It is an arithmetic number, because the mean of its divisors is an integer number (6120582624).

Almost surely, 2^84427696451 is an apocalyptic number.

84427696451 is a deficient number, since it is larger than the sum of its proper divisors (13501625533).

84427696451 is a wasteful number, since it uses less digits than its factorization.

84427696451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200690.

The product of its digits is 11612160, while the sum is 56.

The spelling of 84427696451 in words is "eighty-four billion, four hundred twenty-seven million, six hundred ninety-six thousand, four hundred fifty-one".