154008461538 has 32 divisors (see below), whose sum is σ = 360253713600. Its totient is φ = 48634250688.

The previous prime is 154008461489. The next prime is 154008461597. The reversal of 154008461538 is 835164800451.

154008461538 is a `hidden beast` number, since 1 + 54 + 0 + 0 + 8 + 4 + 61 + 538 = 666.

154008461538 is a modest number, since divided by 461538 gives 154008 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 154008461493 and 154008461502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75051831 + ... + 75053882.

It is an arithmetic number, because the mean of its divisors is an integer number (11257928550).

Almost surely, 2^154008461538 is an apocalyptic number.

154008461538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

154008461538 is an abundant number, since it is smaller than the sum of its proper divisors (206245252062).

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

154008461538 is a wasteful number, since it uses less digits than its factorization.

154008461538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150105743 (or 150105737 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 154008461538 in words is "one hundred fifty-four billion, eight million, four hundred sixty-one thousand, five hundred thirty-eight".