7948783654 has 16 divisors (see below), whose sum is σ = 13829868288. Its totient is φ = 3355776072.

The previous prime is 7948783643. The next prime is 7948783657. The reversal of 7948783654 is 4563878497.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7948783592 and 7948783601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948783657) 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, 4236154 + ... + 4238029.

It is an arithmetic number, because the mean of its divisors is an integer number (864366768).

Almost surely, 2^7948783654 is an apocalyptic number.

7948783654 is a deficient number, since it is larger than the sum of its proper divisors (5881084634).

7948783654 is a wasteful number, since it uses less digits than its factorization.

7948783654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474259.

The product of its digits is 40642560, while the sum is 61.

The square root of 7948783654 is about 89155.9513100500. The cubic root of 7948783654 is about 1995.7228305982.

The spelling of 7948783654 in words is "seven billion, nine hundred forty-eight million, seven hundred eighty-three thousand, six hundred fifty-four".