7420674661 has 4 divisors (see below), whose sum is σ = 7420967424. Its totient is φ = 7420381900.

The previous prime is 7420674587. The next prime is 7420674707. The reversal of 7420674661 is 1664760247.

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: 1664760247 = 2087 ⋅797681.

It is a cyclic number.

It is not a de Polignac number, because 7420674661 - 2²⁹ = 6883803749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420674361) 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, 104335 + ... + 160396.

It is an arithmetic number, because the mean of its divisors is an integer number (1855241856).

Almost surely, 2^7420674661 is an apocalyptic number.

It is an amenable number.

7420674661 is a deficient number, since it is larger than the sum of its proper divisors (292763).

7420674661 is a wasteful number, since it uses less digits than its factorization.

7420674661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292762.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 7420674661 is about 86143.3378793740. The cubic root of 7420674661 is about 1950.5082752188.

The spelling of 7420674661 in words is "seven billion, four hundred twenty million, six hundred seventy-four thousand, six hundred sixty-one".