73000007358661 has 4 divisors (see below), whose sum is σ = 73924058084800. Its totient is φ = 72075956632524.

The previous prime is 73000007358659. The next prime is 73000007358673. The reversal of 73000007358661 is 16685370000037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73000007358661 - 2¹ = 73000007358659 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 (73000007358961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462025362951 + ... + 462025363108.

It is an arithmetic number, because the mean of its divisors is an integer number (18481014521200).

Almost surely, 2^{73000007358661} is an apocalyptic number.

It is an amenable number.

73000007358661 is a deficient number, since it is larger than the sum of its proper divisors (924050726139).

73000007358661 is an equidigital number, since it uses as much as digits as its factorization.

73000007358661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924050726138.

The product of its (nonzero) digits is 635040, while the sum is 46.

Adding to 73000007358661 its reverse (16685370000037), we get a palindrome (89685377358698).

The spelling of 73000007358661 in words is "seventy-three trillion, seven million, three hundred fifty-eight thousand, six hundred sixty-one".