1361055772427 has 16 divisors (see below), whose sum is σ = 1528015292160. Its totient is φ = 1203793488000.

The previous prime is 1361055772423. The next prime is 1361055772463. The reversal of 1361055772427 is 7242775501631.

It is not a de Polignac number, because 1361055772427 - 2² = 1361055772423 is a prime.

It is a super-2 number, since 2×1361055772427² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361055772423) 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, 16678652 + ... + 16760057.

It is an arithmetic number, because the mean of its divisors is an integer number (95500955760).

Almost surely, 2^{1361055772427} is an apocalyptic number.

1361055772427 is a deficient number, since it is larger than the sum of its proper divisors (166959519733).

1361055772427 is a wasteful number, since it uses less digits than its factorization.

1361055772427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33438854.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 1361055772427 in words is "one trillion, three hundred sixty-one billion, fifty-five million, seven hundred seventy-two thousand, four hundred twenty-seven".