7657749465 has 16 divisors (see below), whose sum is σ = 12253526208. Its totient is φ = 4083757376.

The previous prime is 7657749461. The next prime is 7657749479. The reversal of 7657749465 is 5649477567.

It is a cyclic number.

It is not a de Polignac number, because 7657749465 - 2² = 7657749461 is a prime.

It is a super-2 number, since 2×7657749465² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7657749399 and 7657749408.

It is not an unprimeable number, because it can be changed into a prime (7657749461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241462 + ... + 271328.

It is an arithmetic number, because the mean of its divisors is an integer number (765845388).

Almost surely, 2^7657749465 is an apocalyptic number.

It is an amenable number.

7657749465 is a deficient number, since it is larger than the sum of its proper divisors (4595776743).

7657749465 is a wasteful number, since it uses less digits than its factorization.

7657749465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46968.

The product of its digits is 44452800, while the sum is 60.

The square root of 7657749465 is about 87508.5679519440. The cubic root of 7657749465 is about 1971.0624505129.

The spelling of 7657749465 in words is "seven billion, six hundred fifty-seven million, seven hundred forty-nine thousand, four hundred sixty-five".