154448388402 has 48 divisors (see below), whose sum is σ = 388035633216. Its totient is φ = 40116463200.

The previous prime is 154448388397. The next prime is 154448388443. The reversal of 154448388402 is 204883844451.

It is a super-2 number, since 2×154448388402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15190549 + ... + 15200712.

It is an arithmetic number, because the mean of its divisors is an integer number (8084075692).

Almost surely, 2^154448388402 is an apocalyptic number.

154448388402 is an abundant number, since it is smaller than the sum of its proper divisors (233587244814).

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

154448388402 is a wasteful number, since it uses less digits than its factorization.

154448388402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30391295 (or 30391284 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 51.

The spelling of 154448388402 in words is "one hundred fifty-four billion, four hundred forty-eight million, three hundred eighty-eight thousand, four hundred two".