72099689050 has 12 divisors (see below), whose sum is σ = 134105421726. Its totient is φ = 28839875600.

The previous prime is 72099689003. The next prime is 72099689069. The reversal of 72099689050 is 5098699027.

It can be written as a sum of positive squares in 3 ways, for example, as 65735319321 + 6364369729 = 256389^2 + 79777^2 .

It is a super-2 number, since 2×72099689050² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72099688982 and 72099689000.

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 5 ways as a sum of consecutive naturals, for example, 720996841 + ... + 720996940.

Almost surely, 2^72099689050 is an apocalyptic number.

72099689050 is a deficient number, since it is larger than the sum of its proper divisors (62005732676).

72099689050 is a wasteful number, since it uses less digits than its factorization.

72099689050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441993793 (or 1441993788 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 72099689050 in words is "seventy-two billion, ninety-nine million, six hundred eighty-nine thousand, fifty".