72348563194 has 4 divisors (see below), whose sum is σ = 108522844794. Its totient is φ = 36174281596.

The previous prime is 72348563173. The next prime is 72348563267. The reversal of 72348563194 is 49136584327.

It is a happy number.

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., 60546999969 + 11801563225 = 246063^2 + 108635^2 .

It is a super-2 number, since 2×72348563194² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18087140797 + ... + 18087140800.

Almost surely, 2^72348563194 is an apocalyptic number.

72348563194 is a deficient number, since it is larger than the sum of its proper divisors (36174281600).

72348563194 is a wasteful number, since it uses less digits than its factorization.

72348563194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36174281599.

The product of its digits is 4354560, while the sum is 52.

The spelling of 72348563194 in words is "seventy-two billion, three hundred forty-eight million, five hundred sixty-three thousand, one hundred ninety-four".