42756270945 has 16 divisors (see below), whose sum is σ = 68606059200. Its totient is φ = 22738002624.

The previous prime is 42756270943. The next prime is 42756271031. The reversal of 42756270945 is 54907265724.

It is not a de Polignac number, because 42756270945 - 2¹ = 42756270943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42756270943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4078459 + ... + 4088928.

It is an arithmetic number, because the mean of its divisors is an integer number (4287878700).

Almost surely, 2^42756270945 is an apocalyptic number.

It is an amenable number.

42756270945 is a deficient number, since it is larger than the sum of its proper divisors (25849788255).

42756270945 is a wasteful number, since it uses less digits than its factorization.

42756270945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167744.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 42756270945 in words is "forty-two billion, seven hundred fifty-six million, two hundred seventy thousand, nine hundred forty-five".