646515462516434 has 32 divisors (see below), whose sum is σ = 1138262849942400. Its totient is φ = 269625143756160.

The previous prime is 646515462516419. The next prime is 646515462516499. The reversal of 646515462516434 is 434615264515646.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447506224 + ... + 1447952795.

It is an arithmetic number, because the mean of its divisors is an integer number (35570714060700).

Almost surely, 2^{646515462516434} is an apocalyptic number.

646515462516434 is a deficient number, since it is larger than the sum of its proper divisors (491747387425966).

646515462516434 is a wasteful number, since it uses less digits than its factorization.

646515462516434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895459458.

The product of its digits is 248832000, while the sum is 62.

The spelling of 646515462516434 in words is "six hundred forty-six trillion, five hundred fifteen billion, four hundred sixty-two million, five hundred sixteen thousand, four hundred thirty-four".