7620922920 has 128 divisors (see below), whose sum is σ = 24751319040. Its totient is φ = 1866024960.

The previous prime is 7620922919. The next prime is 7620922921. The reversal of 7620922920 is 292290267.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7620922919) and next prime (7620922921).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (7620922921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285172 + ... + 310748.

It is an arithmetic number, because the mean of its divisors is an integer number (193369680).

Almost surely, 2^7620922920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7620922920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12375659520).

7620922920 is an abundant number, since it is smaller than the sum of its proper divisors (17130396120).

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

7620922920 is a wasteful number, since it uses less digits than its factorization.

7620922920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25795 (or 25791 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 7620922920 is about 87297.8975691855. The cubic root of 7620922920 is about 1967.8977221452.

The spelling of 7620922920 in words is "seven billion, six hundred twenty million, nine hundred twenty-two thousand, nine hundred twenty".