643123266003454 has 8 divisors (see below), whose sum is σ = 965029060590120. Its totient is φ = 321446912473416.

The previous prime is 643123266003307. The next prime is 643123266003479. The reversal of 643123266003454 is 454300662321346.

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

It is a super-3 number, since 3×643123266003454³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 643123266003398 and 643123266003407.

It is a congruent number.

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, 57360257149 + ... + 57360268360.

It is an arithmetic number, because the mean of its divisors is an integer number (120628632573765).

Almost surely, 2^{643123266003454} is an apocalyptic number.

643123266003454 is a deficient number, since it is larger than the sum of its proper divisors (321905794586666).

643123266003454 is a wasteful number, since it uses less digits than its factorization.

643123266003454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114720528314.

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 643123266003454 in words is "six hundred forty-three trillion, one hundred twenty-three billion, two hundred sixty-six million, three thousand, four hundred fifty-four".