1861747482126 has 48 divisors (see below), whose sum is σ = 4332124328400. Its totient is φ = 531840435840.

The previous prime is 1861747482103. The next prime is 1861747482163. The reversal of 1861747482126 is 6212847471681.

It is a super-2 number, since 2×1861747482126² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1282300 + ... + 2316848.

It is an arithmetic number, because the mean of its divisors is an integer number (90252590175).

Almost surely, 2^{1861747482126} is an apocalyptic number.

1861747482126 is an abundant number, since it is smaller than the sum of its proper divisors (2470376846274).

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

1861747482126 is a wasteful number, since it uses less digits than its factorization.

1861747482126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040689 (or 1040682 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 57.

The spelling of 1861747482126 in words is "one trillion, eight hundred sixty-one billion, seven hundred forty-seven million, four hundred eighty-two thousand, one hundred twenty-six".