1542351204212 has 144 divisors (see below), whose sum is σ = 3502347996672. Its totient is φ = 588454191360.

The previous prime is 1542351204203. The next prime is 1542351204223. The reversal of 1542351204212 is 2124021532451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23110163 + ... + 23176805.

It is an arithmetic number, because the mean of its divisors is an integer number (24321861088).

Almost surely, 2^{1542351204212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542351204212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751173998336).

1542351204212 is an abundant number, since it is smaller than the sum of its proper divisors (1959996792460).

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

1542351204212 is a wasteful number, since it uses less digits than its factorization.

1542351204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66998 (or 66989 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1542351204212 its reverse (2124021532451), we get a palindrome (3666372736663).

The spelling of 1542351204212 in words is "one trillion, five hundred forty-two billion, three hundred fifty-one million, two hundred four thousand, two hundred twelve".