1364881661628 has 48 divisors (see below), whose sum is σ = 3232522884864. Its totient is φ = 448133241600.

The previous prime is 1364881661621. The next prime is 1364881661657. The reversal of 1364881661628 is 8261661884631.

It is a happy number.

It is a super-2 number, since 2×1364881661628² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364881661621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10756353 + ... + 10882503.

It is an arithmetic number, because the mean of its divisors is an integer number (67344226768).

Almost surely, 2^{1364881661628} is an apocalyptic number.

It is an amenable number.

1364881661628 is an abundant number, since it is smaller than the sum of its proper divisors (1867641223236).

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

1364881661628 is a wasteful number, since it uses less digits than its factorization.

1364881661628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139682 (or 139680 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 60.

The spelling of 1364881661628 in words is "one trillion, three hundred sixty-four billion, eight hundred eighty-one million, six hundred sixty-one thousand, six hundred twenty-eight".