1863961922472 has 96 divisors (see below), whose sum is σ = 5182309392480. Its totient is φ = 558025977600.

The previous prime is 1863961922461. The next prime is 1863961922489. The reversal of 1863961922472 is 2742291693681.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 6060154 + ... + 6360297.

It is an arithmetic number, because the mean of its divisors is an integer number (53982389505).

Almost surely, 2^{1863961922472} is an apocalyptic number.

1863961922472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1863961922472 is an abundant number, since it is smaller than the sum of its proper divisors (3318347470008).

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

1863961922472 is a wasteful number, since it uses less digits than its factorization.

1863961922472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420523 (or 12420506 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The spelling of 1863961922472 in words is "one trillion, eight hundred sixty-three billion, nine hundred sixty-one million, nine hundred twenty-two thousand, four hundred seventy-two".