40689751662 has 24 divisors (see below), whose sum is σ = 100755575856. Its totient is φ = 11625643296.

The previous prime is 40689751633. The next prime is 40689751741. The reversal of 40689751662 is 26615798604.

40689751662 is a `hidden beast` number, since 4 + 0 + 68 + 9 + 7 + 516 + 62 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40689751599 and 40689751608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161467143 + ... + 161467394.

It is an arithmetic number, because the mean of its divisors is an integer number (4198148994).

Almost surely, 2^40689751662 is an apocalyptic number.

40689751662 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40689751662 is an abundant number, since it is smaller than the sum of its proper divisors (60065824194).

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

40689751662 is a wasteful number, since it uses less digits than its factorization.

40689751662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322934552 (or 322934549 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 40689751662 in words is "forty billion, six hundred eighty-nine million, seven hundred fifty-one thousand, six hundred sixty-two".