1021740743754 has 96 divisors (see below), whose sum is σ = 2321308813824. Its totient is φ = 324183156000.

The previous prime is 1021740743753. The next prime is 1021740743801. The reversal of 1021740743754 is 4573470471201.

1021740743754 is a `hidden beast` number, since 102 + 174 + 0 + 7 + 4 + 375 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (1021740743753) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135811837 + ... + 135819359.

It is an arithmetic number, because the mean of its divisors is an integer number (24180300144).

Almost surely, 2^{1021740743754} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021740743754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160654406912).

1021740743754 is an abundant number, since it is smaller than the sum of its proper divisors (1299568070070).

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

1021740743754 is a wasteful number, since it uses less digits than its factorization.

1021740743754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 1021740743754 in words is "one trillion, twenty-one billion, seven hundred forty million, seven hundred forty-three thousand, seven hundred fifty-four".