1983773951 has 2 divisors, whose sum is σ = 1983773952. Its totient is φ = 1983773950.

The previous prime is 1983773947. The next prime is 1983773993. The reversal of 1983773951 is 1593773891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1983773951 - 2² = 1983773947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1983773893 and 1983773902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1983773551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991886975 + 991886976.

It is an arithmetic number, because the mean of its divisors is an integer number (991886976).

Almost surely, 2^1983773951 is an apocalyptic number.

1983773951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983773951 is an equidigital number, since it uses as much as digits as its factorization.

1983773951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 53.

The square root of 1983773951 is about 44539.5773554263. The cubic root of 1983773951 is about 1256.5045369696.

The spelling of 1983773951 in words is "one billion, nine hundred eighty-three million, seven hundred seventy-three thousand, nine hundred fifty-one".