85863031782738 has 128 divisors (see below), whose sum is σ = 206932716748800. Its totient is φ = 23232094479360.

The previous prime is 85863031782709. The next prime is 85863031782817. The reversal of 85863031782738 is 83728713036858.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394531320 + ... + 394748892.

It is an arithmetic number, because the mean of its divisors is an integer number (1616661849600).

Almost surely, 2^{85863031782738} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85863031782738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103466358374400).

85863031782738 is an abundant number, since it is smaller than the sum of its proper divisors (121069684966062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85863031782738 is a wasteful number, since it uses less digits than its factorization.

85863031782738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224112.

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 85863031782738 in words is "eighty-five trillion, eight hundred sixty-three billion, thirty-one million, seven hundred eighty-two thousand, seven hundred thirty-eight".