890659393445 has 8 divisors (see below), whose sum is σ = 1068799273080. Its totient is φ = 712522180800.

The previous prime is 890659393409. The next prime is 890659393451. The reversal of 890659393445 is 544393956098.

It can be written as a sum of positive squares in 4 ways, for example, as 131520099649 + 759139293796 = 362657^2 + 871286^2 .

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

It is not a de Polignac number, because 890659393445 - 2⁶ = 890659393381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161495 + ... + 1344395.

It is an arithmetic number, because the mean of its divisors is an integer number (133599909135).

Almost surely, 2^890659393445 is an apocalyptic number.

It is an amenable number.

890659393445 is a deficient number, since it is larger than the sum of its proper divisors (178139879635).

890659393445 is a wasteful number, since it uses less digits than its factorization.

890659393445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333495.

The product of its (nonzero) digits is 125971200, while the sum is 65.

The spelling of 890659393445 in words is "eight hundred ninety billion, six hundred fifty-nine million, three hundred ninety-three thousand, four hundred forty-five".