1051646404542 has 16 divisors (see below), whose sum is σ = 2104317330960. Its totient is φ = 350378047872.

The previous prime is 1051646404483. The next prime is 1051646404603. The reversal of 1051646404542 is 2454046461501.

It is a happy number.

It is a super-2 number, since 2×1051646404542² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051646404494 and 1051646404503.

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 in 7 ways as a sum of consecutive naturals, for example, 42675067 + ... + 42699702.

It is an arithmetic number, because the mean of its divisors is an integer number (131519833185).

Almost surely, 2^{1051646404542} is an apocalyptic number.

1051646404542 is an abundant number, since it is smaller than the sum of its proper divisors (1052670926418).

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

1051646404542 is a wasteful number, since it uses less digits than its factorization.

1051646404542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85376827.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 1051646404542 in words is "one trillion, fifty-one billion, six hundred forty-six million, four hundred four thousand, five hundred forty-two".