891026034049 has 4 divisors (see below), whose sum is σ = 892065738564. Its totient is φ = 889986329536.

The previous prime is 891026034047. The next prime is 891026034071. The reversal of 891026034049 is 940430620198.

891026034049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 636752929024 + 254273105025 = 797968^2 + 504255^2 .

It is a cyclic number.

It is not a de Polignac number, because 891026034049 - 2¹ = 891026034047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (891026034047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519850972 + ... + 519852685.

It is an arithmetic number, because the mean of its divisors is an integer number (223016434641).

Almost surely, 2^891026034049 is an apocalyptic number.

It is an amenable number.

891026034049 is a deficient number, since it is larger than the sum of its proper divisors (1039704515).

891026034049 is a wasteful number, since it uses less digits than its factorization.

891026034049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039704514.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 891026034049 in words is "eight hundred ninety-one billion, twenty-six million, thirty-four thousand, forty-nine".