1361254263623 has 4 divisors (see below), whose sum is σ = 1394455587168. Its totient is φ = 1328052940080.

The previous prime is 1361254263469. The next prime is 1361254263709. The reversal of 1361254263623 is 3263624521631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1361254263623 - 2¹² = 1361254259527 is a prime.

It is a super-2 number, since 2×1361254263623² (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 (1361254263223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16600661711 + ... + 16600661792.

It is an arithmetic number, because the mean of its divisors is an integer number (348613896792).

Almost surely, 2^{1361254263623} is an apocalyptic number.

1361254263623 is a deficient number, since it is larger than the sum of its proper divisors (33201323545).

1361254263623 is an equidigital number, since it uses as much as digits as its factorization.

1361254263623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33201323544.

The product of its digits is 933120, while the sum is 44.

The spelling of 1361254263623 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-four million, two hundred sixty-three thousand, six hundred twenty-three".