62673620409 has 9 divisors (see below), whose sum is σ = 90529647663. Its totient is φ = 41781912912.

The previous prime is 62673620407. The next prime is 62673620411. The reversal of 62673620409 is 90402637626.

The square root of 62673620409 is 250347.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (62673620407) and next prime (62673620411).

It can be written as a sum of positive squares in only one way, i.e., 6561486009 + 56112134400 = 81003^2 + 236880^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 62673620409 - 2¹ = 62673620407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (62673620407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 709317 + ... + 792765.

Almost surely, 2^62673620409 is an apocalyptic number.

62673620409 is the 250347-th square number.

62673620409 is the 125174-th centered octagonal number.

It is an amenable number.

62673620409 is a deficient number, since it is larger than the sum of its proper divisors (27856027254).

62673620409 is an frugal number, since it uses more digits than its factorization.

62673620409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166904 (or 83452 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 62673620409 in words is "sixty-two billion, six hundred seventy-three million, six hundred twenty thousand, four hundred nine".