84790647783 has 12 divisors (see below), whose sum is σ = 122478288400. Its totient is φ = 56525756256.

The previous prime is 84790647751. The next prime is 84790647791. The reversal of 84790647783 is 38774609748.

84790647783 is a `hidden beast` number, since 84 + 7 + 9 + 0 + 6 + 477 + 83 = 666.

It is not a de Polignac number, because 84790647783 - 2⁵ = 84790647751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84790647783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84790643783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422643 + ... + 590091.

Almost surely, 2^84790647783 is an apocalyptic number.

84790647783 is a deficient number, since it is larger than the sum of its proper divisors (37687640617).

84790647783 is a wasteful number, since it uses less digits than its factorization.

84790647783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223718 (or 223715 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 63.

The spelling of 84790647783 in words is "eighty-four billion, seven hundred ninety million, six hundred forty-seven thousand, seven hundred eighty-three".