7867208461 has 4 divisors (see below), whose sum is σ = 8991095392. Its totient is φ = 6743321532.

The previous prime is 7867208449. The next prime is 7867208477. The reversal of 7867208461 is 1648027687.

It is a happy number.

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: 1648027687 = 653 ⋅2523779.

It is a cyclic number.

It is not a de Polignac number, because 7867208461 - 2⁵ = 7867208429 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 (7867208161) 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, 561943455 + ... + 561943468.

It is an arithmetic number, because the mean of its divisors is an integer number (2247773848).

Almost surely, 2^7867208461 is an apocalyptic number.

It is an amenable number.

7867208461 is a deficient number, since it is larger than the sum of its proper divisors (1123886931).

7867208461 is a wasteful number, since it uses less digits than its factorization.

7867208461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123886930.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 7867208461 is about 88697.2855334367. The cubic root of 7867208461 is about 1988.8722397187.

The spelling of 7867208461 in words is "seven billion, eight hundred sixty-seven million, two hundred eight thousand, four hundred sixty-one".