1051412643544 has 8 divisors (see below), whose sum is σ = 1971398706660. Its totient is φ = 525706321768.

The previous prime is 1051412643539. The next prime is 1051412643557. The reversal of 1051412643544 is 4453462141501.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1051412643544² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051412643497 and 1051412643506.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 65713290214 + ... + 65713290229.

Almost surely, 2^{1051412643544} is an apocalyptic number.

It is an amenable number.

1051412643544 is a deficient number, since it is larger than the sum of its proper divisors (919986063116).

1051412643544 is a wasteful number, since it uses less digits than its factorization.

1051412643544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131426580449 (or 131426580445 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 1051412643544 in words is "one trillion, fifty-one billion, four hundred twelve million, six hundred forty-three thousand, five hundred forty-four".