73351601906 has 24 divisors (see below), whose sum is σ = 120986607420. Its totient is φ = 33328570880.

The previous prime is 73351601881. The next prime is 73351601923. The reversal of 73351601906 is 60910615337.

It can be written as a sum of positive squares in 2 ways, for example, as 72009039025 + 1342562881 = 268345^2 + 36641^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573290 + ... + 689466.

Almost surely, 2^73351601906 is an apocalyptic number.

73351601906 is a deficient number, since it is larger than the sum of its proper divisors (47635005514).

73351601906 is a wasteful number, since it uses less digits than its factorization.

73351601906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118810 (or 118799 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The spelling of 73351601906 in words is "seventy-three billion, three hundred fifty-one million, six hundred one thousand, nine hundred six".