7662157512 has 128 divisors (see below), whose sum is σ = 21022848000. Its totient is φ = 2317835520.

The previous prime is 7662157511. The next prime is 7662157519. The reversal of 7662157512 is 2157512667.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7662157511) 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 31 ways as a sum of consecutive naturals, for example, 1730133 + ... + 1734555.

It is an arithmetic number, because the mean of its divisors is an integer number (164241000).

Almost surely, 2^7662157512 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 7662157512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10511424000).

7662157512 is an abundant number, since it is smaller than the sum of its proper divisors (13360690488).

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

7662157512 is a wasteful number, since it uses less digits than its factorization.

7662157512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611 (or 4607 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 7662157512 is about 87533.7507022291. The cubic root of 7662157512 is about 1971.4405802911.

The spelling of 7662157512 in words is "seven billion, six hundred sixty-two million, one hundred fifty-seven thousand, five hundred twelve".