2351946491 has 2 divisors, whose sum is σ = 2351946492. Its totient is φ = 2351946490.

The previous prime is 2351946469. The next prime is 2351946511. The reversal of 2351946491 is 1946491532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2351946491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2351946461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175973245 + 1175973246.

It is an arithmetic number, because the mean of its divisors is an integer number (1175973246).

Almost surely, 2^2351946491 is an apocalyptic number.

2351946491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2351946491 is an equidigital number, since it uses as much as digits as its factorization.

2351946491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 2351946491 is about 48496.8709402988. The cubic root of 2351946491 is about 1329.8698670423.

The spelling of 2351946491 in words is "two billion, three hundred fifty-one million, nine hundred forty-six thousand, four hundred ninety-one".