154473393949 has 8 divisors (see below), whose sum is σ = 176624667648. Its totient is φ = 132343031760.

The previous prime is 154473393947. The next prime is 154473394067. The reversal of 154473393949 is 949393374451.

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

It is a cyclic number.

It is not a de Polignac number, because 154473393949 - 2¹ = 154473393947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154473393947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5212042 + ... + 5241595.

It is an arithmetic number, because the mean of its divisors is an integer number (22078083456).

Almost surely, 2^154473393949 is an apocalyptic number.

It is an amenable number.

154473393949 is a deficient number, since it is larger than the sum of its proper divisors (22151273699).

154473393949 is a wasteful number, since it uses less digits than its factorization.

154473393949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10455755.

The product of its digits is 44089920, while the sum is 61.

The spelling of 154473393949 in words is "one hundred fifty-four billion, four hundred seventy-three million, three hundred ninety-three thousand, nine hundred forty-nine".