213431540054946 has 128 divisors (see below), whose sum is σ = 451833724108800. Its totient is φ = 67078934345280.

The previous prime is 213431540054899. The next prime is 213431540054947. The reversal of 213431540054946 is 649450045134312.

It is not an unprimeable number, because it can be changed into a prime (213431540054947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2934981175 + ... + 2935053893.

It is an arithmetic number, because the mean of its divisors is an integer number (3529950969600).

Almost surely, 2^{213431540054946} is an apocalyptic number.

213431540054946 is an abundant number, since it is smaller than the sum of its proper divisors (238402184053854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213431540054946 is a wasteful number, since it uses less digits than its factorization.

213431540054946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73964.

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 213431540054946 in words is "two hundred thirteen trillion, four hundred thirty-one billion, five hundred forty million, fifty-four thousand, nine hundred forty-six".