73030123858 has 4 divisors (see below), whose sum is σ = 109545185790. Its totient is φ = 36515061928.

The previous prime is 73030123823. The next prime is 73030123861. The reversal of 73030123858 is 85832103037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70991872249 + 2038251609 = 266443^2 + 45147^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73030123858.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18257530963 + ... + 18257530966.

Almost surely, 2^73030123858 is an apocalyptic number.

73030123858 is a deficient number, since it is larger than the sum of its proper divisors (36515061932).

73030123858 is a wasteful number, since it uses less digits than its factorization.

73030123858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36515061931.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 73030123858 in words is "seventy-three billion, thirty million, one hundred twenty-three thousand, eight hundred fifty-eight".