10051621391328 has 144 divisors (see below), whose sum is σ = 29004377321808. Its totient is φ = 3045722521600.

The previous prime is 10051621391303. The next prime is 10051621391353. The reversal of 10051621391328 is 82319312615001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10051621391303) and next prime (10051621391353).

It is a self number, because there is not a number n which added to its sum of digits gives 10051621391328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230451250 + ... + 230494862.

It is an arithmetic number, because the mean of its divisors is an integer number (201419286957).

Almost surely, 2^{10051621391328} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10051621391328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14502188660904).

10051621391328 is an abundant number, since it is smaller than the sum of its proper divisors (18952755930480).

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

10051621391328 is a wasteful number, since it uses less digits than its factorization.

10051621391328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63489 (or 63470 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 10051621391328 in words is "ten trillion, fifty-one billion, six hundred twenty-one million, three hundred ninety-one thousand, three hundred twenty-eight".