788320051 has 4 divisors (see below), whose sum is σ = 829810600. Its totient is φ = 746829504.

The previous prime is 788320033. The next prime is 788320061. The reversal of 788320051 is 150023887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150023887 = 13 ⋅11540299.

It is not a de Polignac number, because 788320051 - 2¹³ = 788311859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 788319989 and 788320016.

It is not an unprimeable number, because it can be changed into a prime (788320061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20745246 + ... + 20745283.

It is an arithmetic number, because the mean of its divisors is an integer number (207452650).

Almost surely, 2^788320051 is an apocalyptic number.

788320051 is a deficient number, since it is larger than the sum of its proper divisors (41490549).

788320051 is a wasteful number, since it uses less digits than its factorization.

788320051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41490548.

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

The square root of 788320051 is about 28077.0377889121. The cubic root of 788320051 is about 923.7778067306. Note that the first 3 decimals are identical.

The spelling of 788320051 in words is "seven hundred eighty-eight million, three hundred twenty thousand, fifty-one".