4198651957 has 2 divisors, whose sum is σ = 4198651958. Its totient is φ = 4198651956.

The previous prime is 4198651943. The next prime is 4198651969. The reversal of 4198651957 is 7591568914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2137582756 + 2061069201 = 46234^2 + 45399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4198651957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4198651898 and 4198651907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4198651907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099325978 + 2099325979.

It is an arithmetic number, because the mean of its divisors is an integer number (2099325979).

Almost surely, 2^4198651957 is an apocalyptic number.

It is an amenable number.

4198651957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4198651957 is an equidigital number, since it uses as much as digits as its factorization.

4198651957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 55.

The square root of 4198651957 is about 64797.0057718719. The cubic root of 4198651957 is about 1613.2560107921.

The spelling of 4198651957 in words is "four billion, one hundred ninety-eight million, six hundred fifty-one thousand, nine hundred fifty-seven".