6460187722 has 4 divisors (see below), whose sum is σ = 9690281586. Its totient is φ = 3230093860.

The previous prime is 6460187719. The next prime is 6460187729. The reversal of 6460187722 is 2277810646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2277810646 = 2 ⋅1138905323.

It can be written as a sum of positive squares in only one way, i.e., 5694060681 + 766127041 = 75459^2 + 27679^2 .

It is not an unprimeable number, because it can be changed into a prime (6460187729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615046929 + ... + 1615046932.

Almost surely, 2^6460187722 is an apocalyptic number.

6460187722 is a deficient number, since it is larger than the sum of its proper divisors (3230093864).

6460187722 is a wasteful number, since it uses less digits than its factorization.

6460187722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230093863.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 6460187722 is about 80375.2929823587. The cubic root of 6460187722 is about 1862.4375220517.

The spelling of 6460187722 in words is "six billion, four hundred sixty million, one hundred eighty-seven thousand, seven hundred twenty-two".