7488503778 has 128 divisors (see below), whose sum is σ = 18238832640. Its totient is φ = 2004341760.

The previous prime is 7488503767. The next prime is 7488503821. The reversal of 7488503778 is 8773058847.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17294250 + ... + 17294682.

It is an arithmetic number, because the mean of its divisors is an integer number (142490880).

Almost surely, 2^7488503778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7488503778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9119416320).

7488503778 is an abundant number, since it is smaller than the sum of its proper divisors (10750328862).

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

7488503778 is a wasteful number, since it uses less digits than its factorization.

7488503778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 10536960, while the sum is 57.

The square root of 7488503778 is about 86536.1414554636. The cubic root of 7488503778 is about 1956.4331716353.

The spelling of 7488503778 in words is "seven billion, four hundred eighty-eight million, five hundred three thousand, seven hundred seventy-eight".