1361499496540 has 12 divisors (see below), whose sum is σ = 2859148942776. Its totient is φ = 544599798608.

The previous prime is 1361499496523. The next prime is 1361499496657. The reversal of 1361499496540 is 456949941631.

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 3 ways as a sum of consecutive naturals, for example, 34037487394 + ... + 34037487433.

It is an arithmetic number, because the mean of its divisors is an integer number (238262411898).

Almost surely, 2^{1361499496540} is an apocalyptic number.

1361499496540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361499496540 is an abundant number, since it is smaller than the sum of its proper divisors (1497649446236).

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

1361499496540 is a wasteful number, since it uses less digits than its factorization.

1361499496540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68074974836 (or 68074974834 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 61.

The spelling of 1361499496540 in words is "one trillion, three hundred sixty-one billion, four hundred ninety-nine million, four hundred ninety-six thousand, five hundred forty".