135821748624 has 40 divisors (see below), whose sum is σ = 356819855520. Its totient is φ = 44506560768.

The previous prime is 135821748589. The next prime is 135821748703. The reversal of 135821748624 is 426847128531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23976997 + ... + 23982660.

It is an arithmetic number, because the mean of its divisors is an integer number (8920496388).

Almost surely, 2^135821748624 is an apocalyptic number.

It is an amenable number.

135821748624 is an abundant number, since it is smaller than the sum of its proper divisors (220998106896).

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

135821748624 is a wasteful number, since it uses less digits than its factorization.

135821748624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47959727 (or 47959721 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The spelling of 135821748624 in words is "one hundred thirty-five billion, eight hundred twenty-one million, seven hundred forty-eight thousand, six hundred twenty-four".