40689874866 has 16 divisors (see below), whose sum is σ = 81436320000. Its totient is φ = 13553863248.

The previous prime is 40689874807. The next prime is 40689874877. The reversal of 40689874866 is 66847898604.

It is a super-2 number, since 2×40689874866² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40689874797 and 40689874806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347741 + ... + 2365008.

It is an arithmetic number, because the mean of its divisors is an integer number (5089770000).

Almost surely, 2^40689874866 is an apocalyptic number.

40689874866 is an abundant number, since it is smaller than the sum of its proper divisors (40746445134).

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

40689874866 is a wasteful number, since it uses less digits than its factorization.

40689874866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714193.

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 40689874866 in words is "forty billion, six hundred eighty-nine million, eight hundred seventy-four thousand, eight hundred sixty-six".