890356945061 has 4 divisors (see below), whose sum is σ = 905447740800. Its totient is φ = 875266149324.

The previous prime is 890356945033. The next prime is 890356945187. The reversal of 890356945061 is 160549653098.

890356945061 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890356945061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 890356944988 and 890356945006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890356945021) 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, 7545397781 + ... + 7545397898.

It is an arithmetic number, because the mean of its divisors is an integer number (226361935200).

Almost surely, 2^890356945061 is an apocalyptic number.

It is an amenable number.

890356945061 is a deficient number, since it is larger than the sum of its proper divisors (15090795739).

890356945061 is a wasteful number, since it uses less digits than its factorization.

890356945061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15090795738.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 890356945061 in words is "eight hundred ninety billion, three hundred fifty-six million, nine hundred forty-five thousand, sixty-one".