73361727937 has 4 divisors (see below), whose sum is σ = 77677123716. Its totient is φ = 69046332160.

The previous prime is 73361727913. The next prime is 73361727947. The reversal of 73361727937 is 73972716337.

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 39629263041 + 33732464896 = 199071^2 + 183664^2 .

It is a cyclic number.

It is not a de Polignac number, because 73361727937 - 2¹¹ = 73361725889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73361727947) 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, 2157697864 + ... + 2157697897.

It is an arithmetic number, because the mean of its divisors is an integer number (19419280929).

Almost surely, 2^73361727937 is an apocalyptic number.

It is an amenable number.

73361727937 is a deficient number, since it is larger than the sum of its proper divisors (4315395779).

73361727937 is a wasteful number, since it uses less digits than its factorization.

73361727937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315395778.

The product of its digits is 7001316, while the sum is 55.

The spelling of 73361727937 in words is "seventy-three billion, three hundred sixty-one million, seven hundred twenty-seven thousand, nine hundred thirty-seven".