953898845649 has 4 divisors (see below), whose sum is σ = 1271865127536. Its totient is φ = 635932563764.

The previous prime is 953898845629. The next prime is 953898845699. The reversal of 953898845649 is 946548898359.

953898845649 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 not a de Polignac number, because 953898845649 - 2⁷ = 953898845521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (953898845609) 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, 158983140939 + ... + 158983140944.

It is an arithmetic number, because the mean of its divisors is an integer number (317966281884).

Almost surely, 2^953898845649 is an apocalyptic number.

It is an amenable number.

953898845649 is a deficient number, since it is larger than the sum of its proper divisors (317966281887).

953898845649 is a wasteful number, since it uses less digits than its factorization.

953898845649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317966281886.

The product of its digits is 2687385600, while the sum is 78.

The spelling of 953898845649 in words is "nine hundred fifty-three billion, eight hundred ninety-eight million, eight hundred forty-five thousand, six hundred forty-nine".