72380786416 has 40 divisors (see below), whose sum is σ = 142823831904. Its totient is φ = 35527403520.

The previous prime is 72380786393. The next prime is 72380786419. The reversal of 72380786416 is 61468708327.

It is a super-2 number, since 2×72380786416² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72380786419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127960 + ... + 401416.

Almost surely, 2^72380786416 is an apocalyptic number.

It is an amenable number.

72380786416 is a deficient number, since it is larger than the sum of its proper divisors (70443045488).

72380786416 is a wasteful number, since it uses less digits than its factorization.

72380786416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273769 (or 273763 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 72380786416 in words is "seventy-two billion, three hundred eighty million, seven hundred eighty-six thousand, four hundred sixteen".