1860897862540 has 12 divisors (see below), whose sum is σ = 3907885511376. Its totient is φ = 744359145008.

The previous prime is 1860897862531. The next prime is 1860897862543. The reversal of 1860897862540 is 452687980681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1860897862543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46522446544 + ... + 46522446583.

It is an arithmetic number, because the mean of its divisors is an integer number (325657125948).

Almost surely, 2^{1860897862540} is an apocalyptic number.

1860897862540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1860897862540 is an abundant number, since it is smaller than the sum of its proper divisors (2046987648836).

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

1860897862540 is a wasteful number, since it uses less digits than its factorization.

1860897862540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93044893136 (or 93044893134 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 1860897862540 in words is "one trillion, eight hundred sixty billion, eight hundred ninety-seven million, eight hundred sixty-two thousand, five hundred forty".