1361275025535 has 48 divisors (see below), whose sum is σ = 2377453291200. Its totient is φ = 720505674240.

The previous prime is 1361275025501. The next prime is 1361275025543. The reversal of 1361275025535 is 5355205721631.

1361275025535 is a `hidden beast` number, since 1 + 3 + 61 + 2 + 7 + 50 + 2 + 5 + 535 = 666.

It is not a de Polignac number, because 1361275025535 - 2⁹ = 1361275025023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 22601641 + ... + 22661789.

It is an arithmetic number, because the mean of its divisors is an integer number (49530276900).

Almost surely, 2^{1361275025535} is an apocalyptic number.

1361275025535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1361275025535 is a deficient number, since it is larger than the sum of its proper divisors (1016178265665).

1361275025535 is a wasteful number, since it uses less digits than its factorization.

1361275025535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63968 (or 63965 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 1361275025535 in words is "one trillion, three hundred sixty-one billion, two hundred seventy-five million, twenty-five thousand, five hundred thirty-five".