10394873856 has 520 divisors, whose sum is σ = 34966396080. Its totient is φ = 3057647616.

The previous prime is 10394873833. The next prime is 10394873891. The reversal of 10394873856 is 65837849301.

10394873856 is a `hidden beast` number, since 103 + 9 + 487 + 3 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 107163600 + ... + 107163696.

Almost surely, 2^10394873856 is an apocalyptic number.

10394873856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10394873856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17483198040).

10394873856 is an abundant number, since it is smaller than the sum of its proper divisors (24571522224).

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

10394873856 is an equidigital number, since it uses as much as digits as its factorization.

10394873856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 10394873856 in words is "ten billion, three hundred ninety-four million, eight hundred seventy-three thousand, eight hundred fifty-six".