2351557668 has 12 divisors (see below), whose sum is σ = 5486967920. Its totient is φ = 783852552.

The previous prime is 2351557661. The next prime is 2351557693. The reversal of 2351557668 is 8667551532.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2351557661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97981558 + ... + 97981581.

Almost surely, 2^2351557668 is an apocalyptic number.

It is an amenable number.

2351557668 is an abundant number, since it is smaller than the sum of its proper divisors (3135410252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2351557668 is a wasteful number, since it uses less digits than its factorization.

2351557668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195963146 (or 195963144 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 48.

The square root of 2351557668 is about 48492.8620314372. The cubic root of 2351557668 is about 1329.7965784576.

The spelling of 2351557668 in words is "two billion, three hundred fifty-one million, five hundred fifty-seven thousand, six hundred sixty-eight".