7426605541 has 4 divisors (see below), whose sum is σ = 7426795500. Its totient is φ = 7426415584.

The previous prime is 7426605521. The next prime is 7426605569. The reversal of 7426605541 is 1455066247.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4228250625 + 3198354916 = 65025^2 + 56554^2 .

It is a cyclic number.

It is not a de Polignac number, because 7426605541 - 2⁵ = 7426605509 is a prime.

It is a super-2 number, since 2×7426605541² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7426605494 and 7426605503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426605521) 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, 12406 + ... + 122503.

It is an arithmetic number, because the mean of its divisors is an integer number (1856698875).

Almost surely, 2^7426605541 is an apocalyptic number.

It is an amenable number.

7426605541 is a deficient number, since it is larger than the sum of its proper divisors (189959).

7426605541 is a wasteful number, since it uses less digits than its factorization.

7426605541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189958.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 7426605541 is about 86177.7554882929. The cubic root of 7426605541 is about 1951.0277764993.

The spelling of 7426605541 in words is "seven billion, four hundred twenty-six million, six hundred five thousand, five hundred forty-one".