1951350851 has 2 divisors, whose sum is σ = 1951350852. Its totient is φ = 1951350850.

The previous prime is 1951350847. The next prime is 1951350859. The reversal of 1951350851 is 1580531591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1951350851 - 2² = 1951350847 is a prime.

It is not a weakly prime, because it can be changed into another prime (1951350859) 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 as a sum of consecutive naturals, namely, 975675425 + 975675426.

It is an arithmetic number, because the mean of its divisors is an integer number (975675426).

Almost surely, 2^1951350851 is an apocalyptic number.

1951350851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1951350851 is an equidigital number, since it uses as much as digits as its factorization.

1951350851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 38.

The square root of 1951350851 is about 44174.0970592496. The cubic root of 1951350851 is about 1249.6214002213.

The spelling of 1951350851 in words is "one billion, nine hundred fifty-one million, three hundred fifty thousand, eight hundred fifty-one".