135445378280744 has 64 divisors (see below), whose sum is σ = 291315757599360. Its totient is φ = 57833237145600.

The previous prime is 135445378280743. The next prime is 135445378280759. The reversal of 135445378280744 is 447082873544531.

It is a super-2 number, since 2×135445378280744² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (135445378280743) 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, 14924444 + ... + 22217780.

It is an arithmetic number, because the mean of its divisors is an integer number (4551808712490).

Almost surely, 2^{135445378280744} is an apocalyptic number.

135445378280744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135445378280744 is an abundant number, since it is smaller than the sum of its proper divisors (155870379318616).

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

135445378280744 is a wasteful number, since it uses less digits than its factorization.

135445378280744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294578 (or 7294574 counting only the distinct ones).

The product of its (nonzero) digits is 361267200, while the sum is 65.

The spelling of 135445378280744 in words is "one hundred thirty-five trillion, four hundred forty-five billion, three hundred seventy-eight million, two hundred eighty thousand, seven hundred forty-four".