72395565650 has 24 divisors (see below), whose sum is σ = 134968218624. Its totient is φ = 28891029200.

The previous prime is 72395565643. The next prime is 72395565659. The reversal of 72395565650 is 5656559327.

It is a super-2 number, since 2×72395565650² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72395565592 and 72395565601.

It is not an unprimeable number, because it can be changed into a prime (72395565659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1658162 + ... + 1701261.

It is an arithmetic number, because the mean of its divisors is an integer number (5623675776).

Almost surely, 2^72395565650 is an apocalyptic number.

72395565650 is a deficient number, since it is larger than the sum of its proper divisors (62572652974).

72395565650 is a wasteful number, since it uses less digits than its factorization.

72395565650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359866 (or 3359861 counting only the distinct ones).

The product of its (nonzero) digits is 8505000, while the sum is 53.

The spelling of 72395565650 in words is "seventy-two billion, three hundred ninety-five million, five hundred sixty-five thousand, six hundred fifty".