135347721610 has 16 divisors (see below), whose sum is σ = 250210383336. Its totient is φ = 52675869888.

The previous prime is 135347721601. The next prime is 135347721629. The reversal of 135347721610 is 16127743531.

It can be written as a sum of positive squares in 4 ways, for example, as 114860665921 + 20487055689 = 338911^2 + 143133^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182901957 + ... + 182902696.

Almost surely, 2^135347721610 is an apocalyptic number.

135347721610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135347721610 is a deficient number, since it is larger than the sum of its proper divisors (114862661726).

135347721610 is a wasteful number, since it uses less digits than its factorization.

135347721610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365804697.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 135347721610 in words is "one hundred thirty-five billion, three hundred forty-seven million, seven hundred twenty-one thousand, six hundred ten".