1863362772492 has 192 divisors, whose sum is σ = 5195985715200. Its totient is φ = 514459848960.

The previous prime is 1863362772449. The next prime is 1863362772497. The reversal of 1863362772492 is 2942772633681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1863362772497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4102809 + ... + 4534287.

It is an arithmetic number, because the mean of its divisors is an integer number (27062425600).

Almost surely, 2^{1863362772492} is an apocalyptic number.

1863362772492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1863362772492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2597992857600).

1863362772492 is an abundant number, since it is smaller than the sum of its proper divisors (3332622942708).

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

1863362772492 is a wasteful number, since it uses less digits than its factorization.

1863362772492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431596 (or 431594 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 60.

The spelling of 1863362772492 in words is "one trillion, eight hundred sixty-three billion, three hundred sixty-two million, seven hundred seventy-two thousand, four hundred ninety-two".