64949016453 has 64 divisors (see below), whose sum is σ = 97639219200. Its totient is φ = 38317406400.

The previous prime is 64949016437. The next prime is 64949016479. The reversal of 64949016453 is 35461094946.

It is not a de Polignac number, because 64949016453 - 2⁴ = 64949016437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64949016396 and 64949016405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64949016403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18496968 + ... + 18500478.

It is an arithmetic number, because the mean of its divisors is an integer number (1525612800).

Almost surely, 2^64949016453 is an apocalyptic number.

It is an amenable number.

64949016453 is a deficient number, since it is larger than the sum of its proper divisors (32690202747).

64949016453 is a wasteful number, since it uses less digits than its factorization.

64949016453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 64949016453 in words is "sixty-four billion, nine hundred forty-nine million, sixteen thousand, four hundred fifty-three".