7563263778 has 144 divisors (see below), whose sum is σ = 19514667744. Its totient is φ = 2110268160.

The previous prime is 7563263777. The next prime is 7563263779. The reversal of 7563263778 is 8773623657.

7563263778 is a `hidden beast` number, since 7 + 563 + 2 + 6 + 3 + 7 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (7563263777) and next prime (7563263779).

It is not an unprimeable number, because it can be changed into a prime (7563263777) 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 71 ways as a sum of consecutive naturals, for example, 7740826 + ... + 7741802.

It is an arithmetic number, because the mean of its divisors is an integer number (135518526).

Almost surely, 2^7563263778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7563263778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9757333872).

7563263778 is an abundant number, since it is smaller than the sum of its proper divisors (11951403966).

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

7563263778 is a wasteful number, since it uses less digits than its factorization.

7563263778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1187 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 54.

The square root of 7563263778 is about 86967.0269584973. The cubic root of 7563263778 is about 1962.9221802477.

The spelling of 7563263778 in words is "seven billion, five hundred sixty-three million, two hundred sixty-three thousand, seven hundred seventy-eight".