6406460626 has 4 divisors (see below), whose sum is σ = 9609690942. Its totient is φ = 3203230312.

The previous prime is 6406460597. The next prime is 6406460647. The reversal of 6406460626 is 6260646046.

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

It can be written as a sum of positive squares in only one way, i.e., 5707651401 + 698809225 = 75549^2 + 26435^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601615155 + ... + 1601615158.

Almost surely, 2^6406460626 is an apocalyptic number.

6406460626 is a deficient number, since it is larger than the sum of its proper divisors (3203230316).

6406460626 is a wasteful number, since it uses less digits than its factorization.

6406460626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203230315.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 6406460626 is about 80040.3687272866. The cubic root of 6406460626 is about 1857.2600643745.

The spelling of 6406460626 in words is "six billion, four hundred six million, four hundred sixty thousand, six hundred twenty-six".