154312574977 has 12 divisors (see below), whose sum is σ = 171295684308. Its totient is φ = 138895196000.

The previous prime is 154312574971. The next prime is 154312575047. The reversal of 154312574977 is 779475213451.

It can be written as a sum of positive squares in 2 ways, for example, as 95434037776 + 58878537201 = 308924^2 + 242649^2 .

It is not a de Polignac number, because 154312574977 - 2⁷ = 154312574849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154312574971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6301198 + ... + 6325639.

It is an arithmetic number, because the mean of its divisors is an integer number (14274640359).

Almost surely, 2^154312574977 is an apocalyptic number.

It is an amenable number.

154312574977 is a deficient number, since it is larger than the sum of its proper divisors (16983109331).

154312574977 is a wasteful number, since it uses less digits than its factorization.

154312574977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626960 (or 12626949 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 55.

The spelling of 154312574977 in words is "one hundred fifty-four billion, three hundred twelve million, five hundred seventy-four thousand, nine hundred seventy-seven".