10146478940 has 96 divisors (see below), whose sum is σ = 23151610944. Its totient is φ = 3713126400.

The previous prime is 10146478919. The next prime is 10146478943. The reversal of 10146478940 is 4987464101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10146478891 and 10146478900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10146478943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25302740 + ... + 25303140.

It is an arithmetic number, because the mean of its divisors is an integer number (241162614).

Almost surely, 2^10146478940 is an apocalyptic number.

10146478940 is a gapful number since it is divisible by the number (10) 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 10146478940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11575805472).

10146478940 is an abundant number, since it is smaller than the sum of its proper divisors (13005132004).

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

10146478940 is a wasteful number, since it uses less digits than its factorization.

10146478940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 10146478940 in words is "ten billion, one hundred forty-six million, four hundred seventy-eight thousand, nine hundred forty".