73641214637 has 8 divisors (see below), whose sum is σ = 74416380312. Its totient is φ = 72866952000.

The previous prime is 73641214631. The next prime is 73641214649.

It is a happy number.

73641214637 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 58611925801 + 15029288836 = 242099^2 + 122594^2 .

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 73641214637 - 2⁶ = 73641214573 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 (73641214631) 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, 61178 + ... + 388619.

It is an arithmetic number, because the mean of its divisors is an integer number (9302047539).

Almost surely, 2^73641214637 is an apocalyptic number.

It is an amenable number.

73641214637 is a deficient number, since it is larger than the sum of its proper divisors (775165675).

73641214637 is a wasteful number, since it uses less digits than its factorization.

73641214637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451519.

The product of its digits is 508032, while the sum is 44.

The spelling of 73641214637 in words is "seventy-three billion, six hundred forty-one million, two hundred fourteen thousand, six hundred thirty-seven".