64441433414402 has 32 divisors (see below), whose sum is σ = 108759496967424. Its totient is φ = 28384490992000.

The previous prime is 64441433414381. The next prime is 64441433414411. The reversal of 64441433414402 is 20441433414446.

It is a super-2 number, since 2×64441433414402² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308422643 + ... + 308631510.

It is an arithmetic number, because the mean of its divisors is an integer number (3398734280232).

Almost surely, 2^{64441433414402} is an apocalyptic number.

64441433414402 is a deficient number, since it is larger than the sum of its proper divisors (44318063553022).

64441433414402 is a wasteful number, since it uses less digits than its factorization.

64441433414402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617054314.

The product of its (nonzero) digits is 1769472, while the sum is 44.

Adding to 64441433414402 its sum of digits (44), we get a palindrome (64441433414446).

Adding to 64441433414402 its reverse (20441433414446), we get a palindrome (84882866828848).

The spelling of 64441433414402 in words is "sixty-four trillion, four hundred forty-one billion, four hundred thirty-three million, four hundred fourteen thousand, four hundred two".