7789994970 has 32 divisors (see below), whose sum is σ = 18712147392. Its totient is φ = 2075536512.

The previous prime is 7789994951. The next prime is 7789994977. The reversal of 7789994970 is 794999877.

It is a junction number, because it is equal to n+sod(n) for n = 7789994895 and 7789994904.

It is not an unprimeable number, because it can be changed into a prime (7789994977) 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 15 ways as a sum of consecutive naturals, for example, 76747 + ... + 146526.

It is an arithmetic number, because the mean of its divisors is an integer number (584754606).

Almost surely, 2^7789994970 is an apocalyptic number.

7789994970 is an abundant number, since it is smaller than the sum of its proper divisors (10922152422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7789994970 is a wasteful number, since it uses less digits than its factorization.

7789994970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224446.

The product of its (nonzero) digits is 72013536, while the sum is 69.

The square root of 7789994970 is about 88260.9481594210. The cubic root of 7789994970 is about 1982.3441754139.

The spelling of 7789994970 in words is "seven billion, seven hundred eighty-nine million, nine hundred ninety-four thousand, nine hundred seventy".