2026767686281 has 16 divisors (see below), whose sum is σ = 2191136109904. Its totient is φ = 1863611898624.

The previous prime is 2026767686261. The next prime is 2026767686341. The reversal of 2026767686281 is 1826867676202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 154087651600 + 1872680034681 = 392540^2 + 1368459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026767686281 - 2²¹ = 2026765589129 is a prime.

It is a super-2 number, since 2×2026767686281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2026767686261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13801615 + ... + 13947691.

It is an arithmetic number, because the mean of its divisors is an integer number (136946006869).

Almost surely, 2^{2026767686281} is an apocalyptic number.

It is an amenable number.

2026767686281 is a deficient number, since it is larger than the sum of its proper divisors (164368423623).

2026767686281 is a wasteful number, since it uses less digits than its factorization.

2026767686281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150220.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 2026767686281 in words is "two trillion, twenty-six billion, seven hundred sixty-seven million, six hundred eighty-six thousand, two hundred eighty-one".