1340526436487 has 32 divisors (see below), whose sum is σ = 1639172313600. Its totient is φ = 1070702696448.

The previous prime is 1340526436439. The next prime is 1340526436489. The reversal of 1340526436487 is 7846346250431.

It is not a de Polignac number, because 1340526436487 - 2⁶ = 1340526436423 is a prime.

It is a super-2 number, since 2×1340526436487² (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 (1340526436489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5885339 + ... + 6108867.

It is an arithmetic number, because the mean of its divisors is an integer number (51224134800).

Almost surely, 2^{1340526436487} is an apocalyptic number.

1340526436487 is a deficient number, since it is larger than the sum of its proper divisors (298645877113).

1340526436487 is a wasteful number, since it uses less digits than its factorization.

1340526436487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224295.

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 1340526436487 in words is "one trillion, three hundred forty billion, five hundred twenty-six million, four hundred thirty-six thousand, four hundred eighty-seven".