2001036735780 has 48 divisors (see below), whose sum is σ = 5754332673600. Its totient is φ = 519187909248.

The previous prime is 2001036735757. The next prime is 2001036735791. The reversal of 2001036735780 is 875376301002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450681730 + ... + 450686169.

It is an arithmetic number, because the mean of its divisors is an integer number (119881930700).

Almost surely, 2^{2001036735780} is an apocalyptic number.

2001036735780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001036735780 is an abundant number, since it is smaller than the sum of its proper divisors (3753295937820).

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

2001036735780 is a wasteful number, since it uses less digits than its factorization.

2001036735780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901367948 (or 901367946 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 2001036735780 in words is "two trillion, one billion, thirty-six million, seven hundred thirty-five thousand, seven hundred eighty".