1531545413412 has 48 divisors (see below), whose sum is σ = 4106937461760. Its totient is φ = 435139793952.

The previous prime is 1531545413351. The next prime is 1531545413491. The reversal of 1531545413412 is 2143145451351.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50914248 + ... + 50944319.

It is an arithmetic number, because the mean of its divisors is an integer number (85561197120).

Almost surely, 2^{1531545413412} is an apocalyptic number.

1531545413412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1531545413412 is an abundant number, since it is smaller than the sum of its proper divisors (2575392048348).

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

1531545413412 is a wasteful number, since it uses less digits than its factorization.

1531545413412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101858760 (or 101858758 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The spelling of 1531545413412 in words is "one trillion, five hundred thirty-one billion, five hundred forty-five million, four hundred thirteen thousand, four hundred twelve".