73745600654738 has 8 divisors (see below), whose sum is σ = 111425834566332. Its totient is φ = 36603655799296.

The previous prime is 73745600654711. The next prime is 73745600654743. The reversal of 73745600654738 is 83745600654737.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70173073501969 + 3572527152769 = 8376937^2 + 1890113^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134572263695 + ... + 134572264242.

Almost surely, 2^{73745600654738} is an apocalyptic number.

73745600654738 is a deficient number, since it is larger than the sum of its proper divisors (37680233911594).

73745600654738 is a wasteful number, since it uses less digits than its factorization.

73745600654738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269144528076.

The product of its (nonzero) digits is 355622400, while the sum is 65.

Subtracting 73745600654738 from its reverse (83745600654737), we obtain a palindrome (9999999999999).

The spelling of 73745600654738 in words is "seventy-three trillion, seven hundred forty-five billion, six hundred million, six hundred fifty-four thousand, seven hundred thirty-eight".