464498618639 has 6 divisors (see below), whose sum is σ = 510564597480. Its totient is φ = 422271471380.

The previous prime is 464498618627. The next prime is 464498618657. The reversal of 464498618639 is 936816894464.

It is not a de Polignac number, because 464498618639 - 2¹² = 464498614543 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 (464498618609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1919415659 + ... + 1919415900.

It is an arithmetic number, because the mean of its divisors is an integer number (85094099580).

Almost surely, 2^464498618639 is an apocalyptic number.

464498618639 is a deficient number, since it is larger than the sum of its proper divisors (46065978841).

464498618639 is a wasteful number, since it uses less digits than its factorization.

464498618639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838831581 (or 3838831570 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 68.

The spelling of 464498618639 in words is "four hundred sixty-four billion, four hundred ninety-eight million, six hundred eighteen thousand, six hundred thirty-nine".