2194355780342 has 32 divisors (see below), whose sum is σ = 3608543844864. Its totient is φ = 992504858400.

The previous prime is 2194355780293. The next prime is 2194355780347. The reversal of 2194355780342 is 2430875534912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194355780347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4520813 + ... + 4982615.

It is an arithmetic number, because the mean of its divisors is an integer number (112766995152).

Almost surely, 2^{2194355780342} is an apocalyptic number.

2194355780342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2194355780342 is a deficient number, since it is larger than the sum of its proper divisors (1414188064522).

2194355780342 is a wasteful number, since it uses less digits than its factorization.

2194355780342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462884.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 2194355780342 in words is "two trillion, one hundred ninety-four billion, three hundred fifty-five million, seven hundred eighty thousand, three hundred forty-two".