7534668820 has 48 divisors (see below), whose sum is σ = 18090293760. Its totient is φ = 2582302464.

The previous prime is 7534668773. The next prime is 7534668833. The reversal of 7534668820 is 288664357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406597 + ... + 424723.

It is an arithmetic number, because the mean of its divisors is an integer number (376881120).

Almost surely, 2^7534668820 is an apocalyptic number.

7534668820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7534668820 is an abundant number, since it is smaller than the sum of its proper divisors (10555624940).

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

7534668820 is a wasteful number, since it uses less digits than its factorization.

7534668820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112 (or 21110 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 7534668820 is about 86802.4701261433. The cubic root of 7534668820 is about 1960.4452705564.

The spelling of 7534668820 in words is "seven billion, five hundred thirty-four million, six hundred sixty-eight thousand, eight hundred twenty".