464891434449 has 32 divisors (see below), whose sum is σ = 696861446400. Its totient is φ = 273529943808.

The previous prime is 464891434433. The next prime is 464891434453. The reversal of 464891434449 is 944434198464.

It is a happy number.

It is not a de Polignac number, because 464891434449 - 2⁴ = 464891434433 is a prime.

It is a super-2 number, since 2×464891434449² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 464891434392 and 464891434401.

It is not an unprimeable number, because it can be changed into a prime (464891434459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1981627 + ... + 2203775.

It is an arithmetic number, because the mean of its divisors is an integer number (21776920200).

Almost surely, 2^464891434449 is an apocalyptic number.

It is an amenable number.

464891434449 is a deficient number, since it is larger than the sum of its proper divisors (231970011951).

464891434449 is a wasteful number, since it uses less digits than its factorization.

464891434449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224521.

The product of its digits is 47775744, while the sum is 60.

The spelling of 464891434449 in words is "four hundred sixty-four billion, eight hundred ninety-one million, four hundred thirty-four thousand, four hundred forty-nine".