3547378606547 has 2 divisors, whose sum is σ = 3547378606548. Its totient is φ = 3547378606546.

The previous prime is 3547378606529. The next prime is 3547378606613. The reversal of 3547378606547 is 7456068737453.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3547378606547 - 2³⁴ = 3530198737363 is a prime.

It is not a weakly prime, because it can be changed into another prime (3547378606147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773689303273 + 1773689303274.

It is an arithmetic number, because the mean of its divisors is an integer number (1773689303274).

Almost surely, 2^{3547378606547} is an apocalyptic number.

3547378606547 is a deficient number, since it is larger than the sum of its proper divisors (1).

3547378606547 is an equidigital number, since it uses as much as digits as its factorization.

3547378606547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 355622400, while the sum is 65.

The spelling of 3547378606547 in words is "three trillion, five hundred forty-seven billion, three hundred seventy-eight million, six hundred six thousand, five hundred forty-seven".