72963471890 has 16 divisors (see below), whose sum is σ = 133487271000. Its totient is φ = 28706939520.

The previous prime is 72963471887. The next prime is 72963471907. The reversal of 72963471890 is 9817436927.

It can be written as a sum of positive squares in 4 ways, for example, as 48207910969 + 24755560921 = 219563^2 + 157339^2 .

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 59805515 + ... + 59806734.

Almost surely, 2^72963471890 is an apocalyptic number.

72963471890 is a deficient number, since it is larger than the sum of its proper divisors (60523799110).

72963471890 is a wasteful number, since it uses less digits than its factorization.

72963471890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119612317.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 72963471890 in words is "seventy-two billion, nine hundred sixty-three million, four hundred seventy-one thousand, eight hundred ninety".