1026435563381 has 8 divisors (see below), whose sum is σ = 1079888702424. Its totient is φ = 974335668480.

The previous prime is 1026435563323. The next prime is 1026435563383. The reversal of 1026435563381 is 1833655346201.

It can be written as a sum of positive squares in 4 ways, for example, as 22962553156 + 1003473010225 = 151534^2 + 1001735^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026435563381 is a prime.

It is a super-2 number, since 2×1026435563381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026435563383) 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, 338309480 + ... + 338312513.

It is an arithmetic number, because the mean of its divisors is an integer number (134986087803).

Almost surely, 2^{1026435563381} is an apocalyptic number.

It is an amenable number.

1026435563381 is a deficient number, since it is larger than the sum of its proper divisors (53453139043).

1026435563381 is an equidigital number, since it uses as much as digits as its factorization.

1026435563381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676622071.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 1026435563381 in words is "one trillion, twenty-six billion, four hundred thirty-five million, five hundred sixty-three thousand, three hundred eighty-one".