1364821091293 has 16 divisors (see below), whose sum is σ = 1491567524352. Its totient is φ = 1238521536000.

The previous prime is 1364821091243. The next prime is 1364821091357. The reversal of 1364821091293 is 3921901284631.

It is a cyclic number.

It is not a de Polignac number, because 1364821091293 - 2¹⁷ = 1364820960221 is a prime.

It is a super-2 number, since 2×1364821091293² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364821091243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17901013 + ... + 17977093.

It is an arithmetic number, because the mean of its divisors is an integer number (93222970272).

Almost surely, 2^{1364821091293} is an apocalyptic number.

It is an amenable number.

1364821091293 is a deficient number, since it is larger than the sum of its proper divisors (126746433059).

1364821091293 is a wasteful number, since it uses less digits than its factorization.

1364821091293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78996.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 1364821091293 in words is "one trillion, three hundred sixty-four billion, eight hundred twenty-one million, ninety-one thousand, two hundred ninety-three".