64326121436 has 6 divisors (see below), whose sum is σ = 112570712520. Its totient is φ = 32163060716.

The previous prime is 64326121429. The next prime is 64326121463. The reversal of 64326121436 is 63412162346.

It is a self number, because there is not a number n which added to its sum of digits gives 64326121436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8040765176 + ... + 8040765183.

It is an arithmetic number, because the mean of its divisors is an integer number (18761785420).

Almost surely, 2^64326121436 is an apocalyptic number.

It is an amenable number.

64326121436 is a deficient number, since it is larger than the sum of its proper divisors (48244591084).

64326121436 is a wasteful number, since it uses less digits than its factorization.

64326121436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16081530363 (or 16081530361 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The spelling of 64326121436 in words is "sixty-four billion, three hundred twenty-six million, one hundred twenty-one thousand, four hundred thirty-six".