1183863351940 has 12 divisors (see below), whose sum is σ = 2486113039116. Its totient is φ = 473545340768.

The previous prime is 1183863351899. The next prime is 1183863351991. The reversal of 1183863351940 is 491533683811.

It can be written as a sum of positive squares in 2 ways, for example, as 568253638276 + 615609713664 = 753826^2 + 784608^2 .

It is a super-2 number, since 2×1183863351940² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29596583779 + ... + 29596583818.

It is an arithmetic number, because the mean of its divisors is an integer number (207176086593).

Almost surely, 2^{1183863351940} is an apocalyptic number.

1183863351940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1183863351940 is an abundant number, since it is smaller than the sum of its proper divisors (1302249687176).

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

1183863351940 is a wasteful number, since it uses less digits than its factorization.

1183863351940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59193167606 (or 59193167604 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 1183863351940 in words is "one trillion, one hundred eighty-three billion, eight hundred sixty-three million, three hundred fifty-one thousand, nine hundred forty".