42735172857 has 16 divisors (see below), whose sum is σ = 61527859008. Its totient is φ = 26228053440.

The previous prime is 42735172819. The next prime is 42735172861. The reversal of 42735172857 is 75827153724.

It is not a de Polignac number, because 42735172857 - 2¹⁶ = 42735107321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42735172877) 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, 1454319 + ... + 1483412.

It is an arithmetic number, because the mean of its divisors is an integer number (3845491188).

Almost surely, 2^42735172857 is an apocalyptic number.

It is an amenable number.

42735172857 is a deficient number, since it is larger than the sum of its proper divisors (18792686151).

42735172857 is a wasteful number, since it uses less digits than its factorization.

42735172857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938120.

The product of its digits is 3292800, while the sum is 51.

The spelling of 42735172857 in words is "forty-two billion, seven hundred thirty-five million, one hundred seventy-two thousand, eight hundred fifty-seven".