84713978446 has 32 divisors (see below), whose sum is σ = 133826128128. Its totient is φ = 40180250880.

The previous prime is 84713978441. The next prime is 84713978471. The reversal of 84713978446 is 64487931748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84713978441) 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, 305566 + ... + 512638.

It is an arithmetic number, because the mean of its divisors is an integer number (4182066504).

Almost surely, 2^84713978446 is an apocalyptic number.

84713978446 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

84713978446 is a deficient number, since it is larger than the sum of its proper divisors (49112149682).

84713978446 is a wasteful number, since it uses less digits than its factorization.

84713978446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207256.

The product of its digits is 32514048, while the sum is 61.

The spelling of 84713978446 in words is "eighty-four billion, seven hundred thirteen million, nine hundred seventy-eight thousand, four hundred forty-six".