642323370230354 has 8 divisors (see below), whose sum is σ = 972011471764860. Its totient is φ = 318319546308736.

The previous prime is 642323370230309. The next prime is 642323370230419. The reversal of 642323370230354 is 453032073323246.

It can be written as a sum of positive squares in 2 ways, for example, as 641491120905625 + 832249324729 = 25327675^2 + 912277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 642323370230299 and 642323370230308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421069402939 + ... + 1421069403390.

Almost surely, 2^{642323370230354} is an apocalyptic number.

642323370230354 is a deficient number, since it is larger than the sum of its proper divisors (329688101534506).

642323370230354 is a wasteful number, since it uses less digits than its factorization.

642323370230354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842138806444.

The product of its (nonzero) digits is 6531840, while the sum is 47.

The spelling of 642323370230354 in words is "six hundred forty-two trillion, three hundred twenty-three billion, three hundred seventy million, two hundred thirty thousand, three hundred fifty-four".