64621402152 has 32 divisors (see below), whose sum is σ = 161560243680. Its totient is φ = 21539568960.

The previous prime is 64621402127. The next prime is 64621402187. The reversal of 64621402152 is 25120412646.

It is a super-2 number, since 2×64621402152² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793827 + ... + 871437.

It is an arithmetic number, because the mean of its divisors is an integer number (5048757615).

Almost surely, 2^64621402152 is an apocalyptic number.

It is an amenable number.

64621402152 is an abundant number, since it is smaller than the sum of its proper divisors (96938841528).

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

64621402152 is a wasteful number, since it uses less digits than its factorization.

64621402152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112313 (or 112309 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 64621402152 its reverse (25120412646), we get a palindrome (89741814798).

The spelling of 64621402152 in words is "sixty-four billion, six hundred twenty-one million, four hundred two thousand, one hundred fifty-two".