84778469330 has 16 divisors (see below), whose sum is σ = 156150111744. Its totient is φ = 33122750640.

The previous prime is 84778469327. The next prime is 84778469339. The reversal of 84778469330 is 3396487748.

It is a self number, because there is not a number n which added to its sum of digits gives 84778469330.

It is not an unprimeable number, because it can be changed into a prime (84778469339) 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, 98579186 + ... + 98580045.

It is an arithmetic number, because the mean of its divisors is an integer number (9759381984).

Almost surely, 2^84778469330 is an apocalyptic number.

84778469330 is a deficient number, since it is larger than the sum of its proper divisors (71371642414).

84778469330 is a wasteful number, since it uses less digits than its factorization.

84778469330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197159281.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 84778469330 in words is "eighty-four billion, seven hundred seventy-eight million, four hundred sixty-nine thousand, three hundred thirty".