7486821697 has 4 divisors (see below), whose sum is σ = 7613717040. Its totient is φ = 7359926356.

The previous prime is 7486821691. The next prime is 7486821737. The reversal of 7486821697 is 7961286847.

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.

It is a cyclic number.

It is not a de Polignac number, because 7486821697 - 2²³ = 7478433089 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7486821691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63447583 + ... + 63447700.

It is an arithmetic number, because the mean of its divisors is an integer number (1903429260).

Almost surely, 2^7486821697 is an apocalyptic number.

It is an amenable number.

7486821697 is a deficient number, since it is larger than the sum of its proper divisors (126895343).

7486821697 is a wasteful number, since it uses less digits than its factorization.

7486821697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126895342.

The product of its digits is 8128512, while the sum is 58.

The square root of 7486821697 is about 86526.4219588445. The cubic root of 7486821697 is about 1956.2866748363.

The spelling of 7486821697 in words is "seven billion, four hundred eighty-six million, eight hundred twenty-one thousand, six hundred ninety-seven".