73729462537 has 2 divisors, whose sum is σ = 73729462538. Its totient is φ = 73729462536.

The previous prime is 73729462531. The next prime is 73729462559. The reversal of 73729462537 is 73526492737.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60213307456 + 13516155081 = 245384^2 + 116259^2 .

It is a cyclic number.

It is not a de Polignac number, because 73729462537 - 2⁷ = 73729462409 is a prime.

It is not a weakly prime, because it can be changed into another prime (73729462531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36864731268 + 36864731269.

It is an arithmetic number, because the mean of its divisors is an integer number (36864731269).

Almost surely, 2^73729462537 is an apocalyptic number.

It is an amenable number.

73729462537 is a deficient number, since it is larger than the sum of its proper divisors (1).

73729462537 is an equidigital number, since it uses as much as digits as its factorization.

73729462537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13335840, while the sum is 55.

The spelling of 73729462537 in words is "seventy-three billion, seven hundred twenty-nine million, four hundred sixty-two thousand, five hundred thirty-seven".