193490655406 has 16 divisors (see below), whose sum is σ = 295174882800. Its totient is φ = 95099246208.

The previous prime is 193490655389. The next prime is 193490655431. The reversal of 193490655406 is 604556094391.

It is a happy number.

It is a super-3 number, since 3×193490655406³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077126 + ... + 2168278.

It is an arithmetic number, because the mean of its divisors is an integer number (18448430175).

Almost surely, 2^193490655406 is an apocalyptic number.

193490655406 is a deficient number, since it is larger than the sum of its proper divisors (101684227394).

193490655406 is a wasteful number, since it uses less digits than its factorization.

193490655406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109203.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 193490655406 in words is "one hundred ninety-three billion, four hundred ninety million, six hundred fifty-five thousand, four hundred six".