945038643377 has 2 divisors, whose sum is σ = 945038643378. Its totient is φ = 945038643376.

The previous prime is 945038643359. The next prime is 945038643401. The reversal of 945038643377 is 773346830549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547705085041 + 397333558336 = 740071^2 + 630344^2 .

It is a cyclic number.

It is not a de Polignac number, because 945038643377 - 2⁶ = 945038643313 is a prime.

It is not a weakly prime, because it can be changed into another prime (945038643077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472519321688 + 472519321689.

It is an arithmetic number, because the mean of its divisors is an integer number (472519321689).

Almost surely, 2^945038643377 is an apocalyptic number.

It is an amenable number.

945038643377 is a deficient number, since it is larger than the sum of its proper divisors (1).

945038643377 is an equidigital number, since it uses as much as digits as its factorization.

945038643377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 59.

The spelling of 945038643377 in words is "nine hundred forty-five billion, thirty-eight million, six hundred forty-three thousand, three hundred seventy-seven".