7290206491 has 4 divisors (see below), whose sum is σ = 7303155912. Its totient is φ = 7277257072.

The previous prime is 7290206489. The next prime is 7290206503. The reversal of 7290206491 is 1946020927.

7290206491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7290206491 - 2¹ = 7290206489 is a prime.

It is a super-2 number, since 2×7290206491² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7290206411) 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, 6473866 + ... + 6474991.

It is an arithmetic number, because the mean of its divisors is an integer number (1825788978).

Almost surely, 2^7290206491 is an apocalyptic number.

7290206491 is a deficient number, since it is larger than the sum of its proper divisors (12949421).

7290206491 is a wasteful number, since it uses less digits than its factorization.

7290206491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12949420.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7290206491 is about 85382.7060416804. The cubic root of 7290206491 is about 1939.0095283198.

The spelling of 7290206491 in words is "seven billion, two hundred ninety million, two hundred six thousand, four hundred ninety-one".