73982475437 has 4 divisors (see below), whose sum is σ = 79673435100. Its totient is φ = 68291515776.

The previous prime is 73982475421. The next prime is 73982475499. The reversal of 73982475437 is 73457428937.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20442994441 + 53539480996 = 142979^2 + 231386^2 .

It is a cyclic number.

It is not a de Polignac number, because 73982475437 - 2⁴ = 73982475421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73982175437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845479812 + ... + 2845479837.

It is an arithmetic number, because the mean of its divisors is an integer number (19918358775).

Almost surely, 2^73982475437 is an apocalyptic number.

It is an amenable number.

73982475437 is a deficient number, since it is larger than the sum of its proper divisors (5690959663).

73982475437 is a wasteful number, since it uses less digits than its factorization.

73982475437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690959662.

The product of its digits is 35562240, while the sum is 59.

The spelling of 73982475437 in words is "seventy-three billion, nine hundred eighty-two million, four hundred seventy-five thousand, four hundred thirty-seven".