354393873929 has 2 divisors, whose sum is σ = 354393873930. Its totient is φ = 354393873928.

The previous prime is 354393873901. The next prime is 354393873941. The reversal of 354393873929 is 929378393453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236631656704 + 117762217225 = 486448^2 + 343165^2 .

It is a cyclic number.

It is not a de Polignac number, because 354393873929 - 2¹² = 354393869833 is a prime.

It is not a weakly prime, because it can be changed into another prime (354393873989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177196936964 + 177196936965.

It is an arithmetic number, because the mean of its divisors is an integer number (177196936965).

Almost surely, 2^354393873929 is an apocalyptic number.

It is an amenable number.

354393873929 is a deficient number, since it is larger than the sum of its proper divisors (1).

354393873929 is an equidigital number, since it uses as much as digits as its factorization.

354393873929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132269760, while the sum is 65.

The spelling of 354393873929 in words is "three hundred fifty-four billion, three hundred ninety-three million, eight hundred seventy-three thousand, nine hundred twenty-nine".