10686619398 has 256 divisors, whose sum is σ = 28727967744. Its totient is φ = 2572922880.

The previous prime is 10686619397. The next prime is 10686619409. The reversal of 10686619398 is 89391668601.

It is a happy number.

It is a super-2 number, since 2×10686619398² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10686619397) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37761765 + ... + 37762047.

It is an arithmetic number, because the mean of its divisors is an integer number (112218624).

Almost surely, 2^10686619398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10686619398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14363983872).

10686619398 is an abundant number, since it is smaller than the sum of its proper divisors (18041348346).

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

10686619398 is a wasteful number, since it uses less digits than its factorization.

10686619398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 10686619398 in words is "ten billion, six hundred eighty-six million, six hundred nineteen thousand, three hundred ninety-eight".