1542143402512 has 20 divisors (see below), whose sum is σ = 2987936607040. Its totient is φ = 771062987808.

The previous prime is 1542143402507. The next prime is 1542143402533. The reversal of 1542143402512 is 2152043412451.

It is a super-2 number, since 2×1542143402512² (a number of 25 digits) contains 22 as substring.

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, 1058533 + ... + 2050555.

It is an arithmetic number, because the mean of its divisors is an integer number (149396830352).

Almost surely, 2^{1542143402512} is an apocalyptic number.

It is an amenable number.

1542143402512 is a deficient number, since it is larger than the sum of its proper divisors (1445793204528).

1542143402512 is an equidigital number, since it uses as much as digits as its factorization.

1542143402512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089190 (or 1089184 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1542143402512 its reverse (2152043412451), we get a palindrome (3694186814963).

The spelling of 1542143402512 in words is "one trillion, five hundred forty-two billion, one hundred forty-three million, four hundred two thousand, five hundred twelve".