78945011883 has 36 divisors (see below), whose sum is σ = 122313712360. Its totient is φ = 50320333800.

The previous prime is 78945011879. The next prime is 78945011953. The reversal of 78945011883 is 38811054987.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

78945011883 is a `hidden beast` number, since 7 + 8 + 9 + 450 + 1 + 188 + 3 = 666.

It is not a de Polignac number, because 78945011883 - 2² = 78945011879 is a prime.

It is a super-2 number, since 2×78945011883² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78945011983) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33578158 + ... + 33580508.

Almost surely, 2^78945011883 is an apocalyptic number.

78945011883 is a deficient number, since it is larger than the sum of its proper divisors (43368700477).

78945011883 is an frugal number, since it uses more digits than its factorization.

78945011883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 78945011883 in words is "seventy-eight billion, nine hundred forty-five million, eleven thousand, eight hundred eighty-three".