3455946478451 has 2 divisors, whose sum is σ = 3455946478452. Its totient is φ = 3455946478450.

The previous prime is 3455946478447. The next prime is 3455946478459. The reversal of 3455946478451 is 1548746495543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3455946478451 - 2² = 3455946478447 is a prime.

It is not a weakly prime, because it can be changed into another prime (3455946478459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727973239225 + 1727973239226.

It is an arithmetic number, because the mean of its divisors is an integer number (1727973239226).

Almost surely, 2^{3455946478451} is an apocalyptic number.

3455946478451 is a deficient number, since it is larger than the sum of its proper divisors (1).

3455946478451 is an equidigital number, since it uses as much as digits as its factorization.

3455946478451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304000, while the sum is 65.

The spelling of 3455946478451 in words is "three trillion, four hundred fifty-five billion, nine hundred forty-six million, four hundred seventy-eight thousand, four hundred fifty-one".