73669287988 has 6 divisors (see below), whose sum is σ = 128921253986. Its totient is φ = 36834643992.

The previous prime is 73669287977. The next prime is 73669287997. The reversal of 73669287988 is 88978296637.

It can be written as a sum of positive squares in only one way, i.e., 71338136464 + 2331151524 = 267092^2 + 48282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73669287988.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9208660995 + ... + 9208661002.

Almost surely, 2^73669287988 is an apocalyptic number.

It is an amenable number.

73669287988 is a deficient number, since it is larger than the sum of its proper divisors (55251965998).

73669287988 is a wasteful number, since it uses less digits than its factorization.

73669287988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18417322001 (or 18417321999 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 73.

The spelling of 73669287988 in words is "seventy-three billion, six hundred sixty-nine million, two hundred eighty-seven thousand, nine hundred eighty-eight".