7645158612 has 144 divisors (see below), whose sum is σ = 23823596160. Its totient is φ = 2013030144.

The previous prime is 7645158607. The next prime is 7645158617. The reversal of 7645158612 is 2168515467.

7645158612 is a `hidden beast` number, since 7 + 6 + 4 + 51 + 586 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (7645158607) and next prime (7645158617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7645158617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2530839 + ... + 2533857.

It is an arithmetic number, because the mean of its divisors is an integer number (165441640).

Almost surely, 2^7645158612 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 7645158612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11911798080).

7645158612 is an abundant number, since it is smaller than the sum of its proper divisors (16178437548).

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

7645158612 is a wasteful number, since it uses less digits than its factorization.

7645158612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822 (or 3817 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 7645158612 is about 87436.5976693970. The cubic root of 7645158612 is about 1969.9815858861.

The spelling of 7645158612 in words is "seven billion, six hundred forty-five million, one hundred fifty-eight thousand, six hundred twelve".