7480778636 has 12 divisors (see below), whose sum is σ = 13542789120. Its totient is φ = 3611410320.

The previous prime is 7480778611. The next prime is 7480778647. The reversal of 7480778636 is 6368770847.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32244620 + ... + 32244851.

It is an arithmetic number, because the mean of its divisors is an integer number (1128565760).

Almost surely, 2^7480778636 is an apocalyptic number.

It is an amenable number.

7480778636 is a deficient number, since it is larger than the sum of its proper divisors (6062010484).

7480778636 is a wasteful number, since it uses less digits than its factorization.

7480778636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64489504 (or 64489502 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 56.

The square root of 7480778636 is about 86491.4945876183. The cubic root of 7480778636 is about 1955.7601878813.

The spelling of 7480778636 in words is "seven billion, four hundred eighty million, seven hundred seventy-eight thousand, six hundred thirty-six".