7640118897 has 8 divisors (see below), whose sum is σ = 10187677344. Its totient is φ = 5092986528.

The previous prime is 7640118859. The next prime is 7640118917. The reversal of 7640118897 is 7988110467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7640118897 - 2¹⁸ = 7639856753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7640118847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62023 + ... + 138300.

It is an arithmetic number, because the mean of its divisors is an integer number (1273459668).

Almost surely, 2^7640118897 is an apocalyptic number.

It is an amenable number.

7640118897 is a deficient number, since it is larger than the sum of its proper divisors (2547558447).

7640118897 is a wasteful number, since it uses less digits than its factorization.

7640118897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213039.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 7640118897 is about 87407.7736645889. The cubic root of 7640118897 is about 1969.5486178424.

The spelling of 7640118897 in words is "seven billion, six hundred forty million, one hundred eighteen thousand, eight hundred ninety-seven".