40820476986 has 24 divisors (see below), whose sum is σ = 91720085184. Its totient is φ = 13606825500.

The previous prime is 40820476979. The next prime is 40820477003. The reversal of 40820476986 is 68967402804.

40820476986 is a `hidden beast` number, since 4 + 0 + 82 + 0 + 476 + 98 + 6 = 666.

It is a super-2 number, since 2×40820476986² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41995890 + ... + 41996861.

It is an arithmetic number, because the mean of its divisors is an integer number (3821670216).

Almost surely, 2^40820476986 is an apocalyptic number.

40820476986 is an abundant number, since it is smaller than the sum of its proper divisors (50899608198).

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

40820476986 is an equidigital number, since it uses as much as digits as its factorization.

40820476986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83992768 (or 83992756 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 40820476986 in words is "forty billion, eight hundred twenty million, four hundred seventy-six thousand, nine hundred eighty-six".