154897738805 has 8 divisors (see below), whose sum is σ = 185904738744. Its totient is φ = 123899889600.

The previous prime is 154897738799. The next prime is 154897738829. The reversal of 154897738805 is 508837798451.

It can be written as a sum of positive squares in 4 ways, for example, as 449524804 + 154448214001 = 21202^2 + 392999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154897738805 - 2⁶ = 154897738741 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2250386 + ... + 2318195.

It is an arithmetic number, because the mean of its divisors is an integer number (23238092343).

Almost surely, 2^154897738805 is an apocalyptic number.

It is an amenable number.

154897738805 is a deficient number, since it is larger than the sum of its proper divisors (31006999939).

154897738805 is an equidigital number, since it uses as much as digits as its factorization.

154897738805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575367.

The product of its (nonzero) digits is 67737600, while the sum is 65.

The spelling of 154897738805 in words is "one hundred fifty-four billion, eight hundred ninety-seven million, seven hundred thirty-eight thousand, eight hundred five".