154564242450 has 24 divisors (see below), whose sum is σ = 383319321648. Its totient is φ = 41217131280.

The previous prime is 154564242401. The next prime is 154564242473. The reversal of 154564242450 is 54242465451.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515213992 + ... + 515214291.

It is an arithmetic number, because the mean of its divisors is an integer number (15971638402).

Almost surely, 2^154564242450 is an apocalyptic number.

154564242450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154564242450 is an abundant number, since it is smaller than the sum of its proper divisors (228755079198).

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

154564242450 is a wasteful number, since it uses less digits than its factorization.

154564242450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030428298 (or 1030428293 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 154564242450 in words is "one hundred fifty-four billion, five hundred sixty-four million, two hundred forty-two thousand, four hundred fifty".