42605377154 has 4 divisors (see below), whose sum is σ = 63908065734. Its totient is φ = 21302688576.

The previous prime is 42605377103. The next prime is 42605377207. The reversal of 42605377154 is 45177350624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27873972025 + 14731405129 = 166955^2 + 121373^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651344287 + ... + 10651344290.

Almost surely, 2^42605377154 is an apocalyptic number.

42605377154 is a deficient number, since it is larger than the sum of its proper divisors (21302688580).

42605377154 is a wasteful number, since it uses less digits than its factorization.

42605377154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21302688579.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 42605377154 in words is "forty-two billion, six hundred five million, three hundred seventy-seven thousand, one hundred fifty-four".