1018781863746 has 16 divisors (see below), whose sum is σ = 2057737627008. Its totient is φ = 336231638000.

The previous prime is 1018781863717. The next prime is 1018781863819. The reversal of 1018781863746 is 6473681878101.

It is a self number, because there is not a number n which added to its sum of digits gives 1018781863746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840578490 + ... + 840579701.

It is an arithmetic number, because the mean of its divisors is an integer number (128608601688).

Almost surely, 2^{1018781863746} is an apocalyptic number.

1018781863746 is an abundant number, since it is smaller than the sum of its proper divisors (1038955763262).

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

1018781863746 is a wasteful number, since it uses less digits than its factorization.

1018781863746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681158297.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 1018781863746 in words is "one trillion, eighteen billion, seven hundred eighty-one million, eight hundred sixty-three thousand, seven hundred forty-six".