646510108492 has 12 divisors (see below), whose sum is σ = 1138333750456. Its totient is φ = 321271894080.

The previous prime is 646510108457. The next prime is 646510108501. The reversal of 646510108492 is 294801015646.

It is a happy number.

It is a super-2 number, since 2×646510108492² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495789309 + ... + 495790612.

Almost surely, 2^646510108492 is an apocalyptic number.

It is an amenable number.

646510108492 is a deficient number, since it is larger than the sum of its proper divisors (491823641964).

646510108492 is a wasteful number, since it uses less digits than its factorization.

646510108492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991580088 (or 991580086 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 646510108492 in words is "six hundred forty-six billion, five hundred ten million, one hundred eight thousand, four hundred ninety-two".