1131650887840 has 48 divisors (see below), whose sum is σ = 2916572974560. Its totient is φ = 411509413120.

The previous prime is 1131650887789. The next prime is 1131650887849. The reversal of 1131650887840 is 487880561311.

It is not an unprimeable number, because it can be changed into a prime (1131650887849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321489970 + ... + 321493489.

It is an arithmetic number, because the mean of its divisors is an integer number (60761936970).

Almost surely, 2^{1131650887840} is an apocalyptic number.

1131650887840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131650887840 is an abundant number, since it is smaller than the sum of its proper divisors (1784922086720).

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

1131650887840 is a wasteful number, since it uses less digits than its factorization.

1131650887840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642983485 (or 642983477 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 1131650887840 in words is "one trillion, one hundred thirty-one billion, six hundred fifty million, eight hundred eighty-seven thousand, eight hundred forty".