64465421034 has 64 divisors (see below), whose sum is σ = 150834917376. Its totient is φ = 17983353024.

The previous prime is 64465421017. The next prime is 64465421051. The reversal of 64465421034 is 43012456446.

It is an interprime number because it is at equal distance from previous prime (64465421017) and next prime (64465421051).

It is a junction number, because it is equal to n+sod(n) for n = 64465420983 and 64465421001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6147804 + ... + 6158280.

It is an arithmetic number, because the mean of its divisors is an integer number (2356795584).

Almost surely, 2^64465421034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64465421034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75417458688).

64465421034 is an abundant number, since it is smaller than the sum of its proper divisors (86369496342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64465421034 is a wasteful number, since it uses less digits than its factorization.

64465421034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13939.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 64465421034 in words is "sixty-four billion, four hundred sixty-five million, four hundred twenty-one thousand, thirty-four".