193354387930 has 32 divisors (see below), whose sum is σ = 379712354688. Its totient is φ = 70304270400.

The previous prime is 193354387913. The next prime is 193354387949. The reversal of 193354387930 is 39783453391.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227124 + ... + 1375696.

It is an arithmetic number, because the mean of its divisors is an integer number (11866011084).

Almost surely, 2^193354387930 is an apocalyptic number.

193354387930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193354387930 is a deficient number, since it is larger than the sum of its proper divisors (186357966758).

193354387930 is a wasteful number, since it uses less digits than its factorization.

193354387930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160422.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 193354387930 in words is "one hundred ninety-three billion, three hundred fifty-four million, three hundred eighty-seven thousand, nine hundred thirty".