7640327601 has 6 divisors (see below), whose sum is σ = 11036028770. Its totient is φ = 5093551728.

The previous prime is 7640327593. The next prime is 7640327621. The reversal of 7640327601 is 1067230467.

7640327601 is a `hidden beast` number, since 7 + 6 + 40 + 3 + 2 + 7 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7638585201 + 1742400 = 87399^2 + 1320^2 .

It is not a de Polignac number, because 7640327601 - 2³ = 7640327593 is a prime.

It is a super-3 number, since 3×7640327601³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640327621) 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 5 ways as a sum of consecutive naturals, for example, 424462636 + ... + 424462653.

Almost surely, 2^7640327601 is an apocalyptic number.

It is an amenable number.

7640327601 is a deficient number, since it is larger than the sum of its proper divisors (3395701169).

7640327601 is a wasteful number, since it uses less digits than its factorization.

7640327601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848925295 (or 848925292 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 7640327601 is about 87408.9675090605. The cubic root of 7640327601 is about 1969.5665516354.

It can be divided in two parts, 7640 and 327601, that added together give a square (335241 = 579²).

The spelling of 7640327601 in words is "seven billion, six hundred forty million, three hundred twenty-seven thousand, six hundred one".