2351921983 has 4 divisors (see below), whose sum is σ = 2415487480. Its totient is φ = 2288356488.

The previous prime is 2351921977. The next prime is 2351921987. The reversal of 2351921983 is 3891291532.

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

It is a cyclic number.

It is not a de Polignac number, because 2351921983 - 2⁵ = 2351921951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2351921987) 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, 31782693 + ... + 31782766.

It is an arithmetic number, because the mean of its divisors is an integer number (603871870).

Almost surely, 2^2351921983 is an apocalyptic number.

2351921983 is a deficient number, since it is larger than the sum of its proper divisors (63565497).

2351921983 is an equidigital number, since it uses as much as digits as its factorization.

2351921983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63565496.

The product of its digits is 116640, while the sum is 43.

The square root of 2351921983 is about 48496.6182635449. The cubic root of 2351921983 is about 1329.8652478096.

The spelling of 2351921983 in words is "two billion, three hundred fifty-one million, nine hundred twenty-one thousand, nine hundred eighty-three".