7640948897 has 4 divisors (see below), whose sum is σ = 7642981056. Its totient is φ = 7638916740.

The previous prime is 7640948879. The next prime is 7640948899. The reversal of 7640948897 is 7988490467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7988490467 = 67 ⋅119231201.

It is a cyclic number.

It is not a de Polignac number, because 7640948897 - 2¹⁴ = 7640932513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640948899) 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 3 ways as a sum of consecutive naturals, for example, 1010429 + ... + 1017962.

It is an arithmetic number, because the mean of its divisors is an integer number (1910745264).

Almost surely, 2^7640948897 is an apocalyptic number.

It is an amenable number.

7640948897 is a deficient number, since it is larger than the sum of its proper divisors (2032159).

7640948897 is a wasteful number, since it uses less digits than its factorization.

7640948897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032158.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The square root of 7640948897 is about 87412.5213971088. The cubic root of 7640948897 is about 1969.6199372456.

The spelling of 7640948897 in words is "seven billion, six hundred forty million, nine hundred forty-eight thousand, eight hundred ninety-seven".