7690521888 has 192 divisors, whose sum is σ = 25706016000. Its totient is φ = 2191214592.

The previous prime is 7690521859. The next prime is 7690521889. The reversal of 7690521888 is 8881250967.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7690521889) 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, 2472078 + ... + 2475186.

It is an arithmetic number, because the mean of its divisors is an integer number (133885500).

Almost surely, 2^7690521888 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 7690521888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12853008000).

7690521888 is an abundant number, since it is smaller than the sum of its proper divisors (18015494112).

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

7690521888 is a wasteful number, since it uses less digits than its factorization.

7690521888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 7690521888 is about 87695.6206888349. The cubic root of 7690521888 is about 1973.8702624428.

The spelling of 7690521888 in words is "seven billion, six hundred ninety million, five hundred twenty-one thousand, eight hundred eighty-eight".