1861725537760 has 96 divisors (see below), whose sum is σ = 4809627849600. Its totient is φ = 675375106560.

The previous prime is 1861725537751. The next prime is 1861725537797. The reversal of 1861725537760 is 677355271681.

It is a super-2 number, since 2×1861725537760² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1861725537695 and 1861725537704.

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 15 ways as a sum of consecutive naturals, for example, 524850 + ... + 1999729.

It is an arithmetic number, because the mean of its divisors is an integer number (50100290100).

Almost surely, 2^{1861725537760} is an apocalyptic number.

1861725537760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1861725537760 is an abundant number, since it is smaller than the sum of its proper divisors (2947902311840).

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

1861725537760 is a wasteful number, since it uses less digits than its factorization.

1861725537760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525024 (or 2525016 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 58.

The spelling of 1861725537760 in words is "one trillion, eight hundred sixty-one billion, seven hundred twenty-five million, five hundred thirty-seven thousand, seven hundred sixty".