10202988478681 has 8 divisors (see below), whose sum is σ = 10213550373600. Its totient is φ = 10192427662560.

The previous prime is 10202988478679. The next prime is 10202988478691. The reversal of 10202988478681 is 18687488920201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10202988478681 - 2¹ = 10202988478679 is a prime.

It is a super-2 number, since 2×10202988478681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202988478691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19395946 + ... + 19915036.

It is an arithmetic number, because the mean of its divisors is an integer number (1276693796700).

Almost surely, 2^{10202988478681} is an apocalyptic number.

It is an amenable number.

10202988478681 is a deficient number, since it is larger than the sum of its proper divisors (10561894919).

10202988478681 is a wasteful number, since it uses less digits than its factorization.

10202988478681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539399.

The product of its (nonzero) digits is 24772608, while the sum is 64.

The spelling of 10202988478681 in words is "ten trillion, two hundred two billion, nine hundred eighty-eight million, four hundred seventy-eight thousand, six hundred eighty-one".