10321376778 has 96 divisors (see below), whose sum is σ = 24085301760. Its totient is φ = 3272918400.

The previous prime is 10321376671. The next prime is 10321376797. The reversal of 10321376778 is 87767312301.

10321376778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10321376778² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6228126 + ... + 6229782.

It is an arithmetic number, because the mean of its divisors is an integer number (250888560).

Almost surely, 2^10321376778 is an apocalyptic number.

10321376778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10321376778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12042650880).

10321376778 is an abundant number, since it is smaller than the sum of its proper divisors (13763924982).

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

10321376778 is a wasteful number, since it uses less digits than its factorization.

10321376778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 10321376778 in words is "ten billion, three hundred twenty-one million, three hundred seventy-six thousand, seven hundred seventy-eight".