7642790648 has 32 divisors (see below), whose sum is σ = 14723523360. Its totient is φ = 3717073920.

The previous prime is 7642790647. The next prime is 7642790671. The reversal of 7642790648 is 8460972467.

It is a super-3 number, since 3×7642790648³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7642790648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642790647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75965 + ... + 145107.

It is an arithmetic number, because the mean of its divisors is an integer number (460110105).

Almost surely, 2^7642790648 is an apocalyptic number.

It is an amenable number.

7642790648 is a deficient number, since it is larger than the sum of its proper divisors (7080732712).

7642790648 is a wasteful number, since it uses less digits than its factorization.

7642790648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69527 (or 69523 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 53.

The square root of 7642790648 is about 87423.0555860409. The cubic root of 7642790648 is about 1969.7781749252.

The spelling of 7642790648 in words is "seven billion, six hundred forty-two million, seven hundred ninety thousand, six hundred forty-eight".