40767525621 has 12 divisors (see below), whose sum is σ = 58888304748. Its totient is φ = 27177483264.

The previous prime is 40767525611. The next prime is 40767525677. The reversal of 40767525621 is 12652576704.

40767525621 is a `hidden beast` number, since 4 + 0 + 7 + 67 + 525 + 62 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8894564721 + 31872960900 = 94311^2 + 178530^2 .

It is not a de Polignac number, because 40767525621 - 2¹⁰ = 40767524597 is a prime.

It is a super-2 number, since 2×40767525621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40767525611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364291 + ... + 462863.

It is an arithmetic number, because the mean of its divisors is an integer number (4907358729).

Almost surely, 2^40767525621 is an apocalyptic number.

It is an amenable number.

40767525621 is a deficient number, since it is larger than the sum of its proper divisors (18120779127).

40767525621 is a wasteful number, since it uses less digits than its factorization.

40767525621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144532 (or 144529 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 40767525621 in words is "forty billion, seven hundred sixty-seven million, five hundred twenty-five thousand, six hundred twenty-one".