135439262784 has 140 divisors (see below), whose sum is σ = 458839441984. Its totient is φ = 38696921856.

The previous prime is 135439262753. The next prime is 135439262789. The reversal of 135439262784 is 487262934531.

135439262784 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 3 + 9 + 2 + 627 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 135439262784.

It is not an unprimeable number, because it can be changed into a prime (135439262789) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1829884 + ... + 1902459.

Almost surely, 2^135439262784 is an apocalyptic number.

135439262784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135439262784 is an abundant number, since it is smaller than the sum of its proper divisors (323400179200).

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

135439262784 is an equidigital number, since it uses as much as digits as its factorization.

135439262784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732374 (or 3732355 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 135439262784 in words is "one hundred thirty-five billion, four hundred thirty-nine million, two hundred sixty-two thousand, seven hundred eighty-four".