73457475437 has 8 divisors (see below), whose sum is σ = 74865382680. Its totient is φ = 72062913600.

The previous prime is 73457475407. The next prime is 73457475479.

73457475437 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 31434935401 + 42022540036 = 177299^2 + 204994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73457475437 - 2⁶ = 73457475373 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 (73457475407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3325238 + ... + 3347255.

It is an arithmetic number, because the mean of its divisors is an integer number (9358172835).

Almost surely, 2^73457475437 is an apocalyptic number.

It is an amenable number.

73457475437 is a deficient number, since it is larger than the sum of its proper divisors (1407907243).

73457475437 is a wasteful number, since it uses less digits than its factorization.

73457475437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672703.

The product of its digits is 34574400, while the sum is 56.

The spelling of 73457475437 in words is "seventy-three billion, four hundred fifty-seven million, four hundred seventy-five thousand, four hundred thirty-seven".