84444960778 has 16 divisors (see below), whose sum is σ = 135734356800. Its totient is φ = 39260022976.

The previous prime is 84444960767. The next prime is 84444960779. The reversal of 84444960778 is 87706944448.

It is not an unprimeable number, because it can be changed into a prime (84444960779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14959078 + ... + 14964721.

It is an arithmetic number, because the mean of its divisors is an integer number (8483397300).

Almost surely, 2^84444960778 is an apocalyptic number.

84444960778 is a deficient number, since it is larger than the sum of its proper divisors (51289396022).

84444960778 is a wasteful number, since it uses less digits than its factorization.

84444960778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29923901.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 84444960778 in words is "eighty-four billion, four hundred forty-four million, nine hundred sixty thousand, seven hundred seventy-eight".