213912903361542 has 96 divisors (see below), whose sum is σ = 542957653021824. Its totient is φ = 55557744480000.

The previous prime is 213912903361541. The next prime is 213912903361657. The reversal of 213912903361542 is 245163309219312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213912903361541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42106542 + ... + 46912542.

It is an arithmetic number, because the mean of its divisors is an integer number (5655808885644).

Almost surely, 2^{213912903361542} is an apocalyptic number.

213912903361542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213912903361542 is an abundant number, since it is smaller than the sum of its proper divisors (329044749660282).

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

213912903361542 is a wasteful number, since it uses less digits than its factorization.

213912903361542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819794 (or 4819787 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 213912903361542 in words is "two hundred thirteen trillion, nine hundred twelve billion, nine hundred three million, three hundred sixty-one thousand, five hundred forty-two".