78382051 has 8 divisors (see below), whose sum is σ = 85629744. Its totient is φ = 71154720.

The previous prime is 78382039. The next prime is 78382061. The reversal of 78382051 is 15028387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78382051 - 2⁷ = 78381923 is a prime.

It is a super-2 number, since 2×78382051² = 12287491837933202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78381998 and 78382016.

It is not an unprimeable number, because it can be changed into a prime (78382061) 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, 3621 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (10703718).

Almost surely, 2^78382051 is an apocalyptic number.

78382051 is a deficient number, since it is larger than the sum of its proper divisors (7247693).

78382051 is a wasteful number, since it uses less digits than its factorization.

78382051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 78382051 is about 8853.3638239937. The cubic root of 78382051 is about 427.9623278194.

It can be divided in two parts, 7838 and 2051, that added together give a palindrome (9889).

The spelling of 78382051 in words is "seventy-eight million, three hundred eighty-two thousand, fifty-one".