42557147235 has 12 divisors (see below), whose sum is σ = 73765721952. Its totient is φ = 22697145168.

The previous prime is 42557147219. The next prime is 42557147267. The reversal of 42557147235 is 53274175524.

42557147235 is a `hidden beast` number, since 4 + 2 + 5 + 571 + 4 + 72 + 3 + 5 = 666.

It is not a de Polignac number, because 42557147235 - 2⁴ = 42557147219 is a prime.

It is a super-2 number, since 2×42557147235² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 945714383 = 42557147235 / (4 + 2 + 5 + 5 + 7 + 1 + 4 + 7 + 2 + 3 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472857147 + ... + 472857236.

It is an arithmetic number, because the mean of its divisors is an integer number (6147143496).

Almost surely, 2^42557147235 is an apocalyptic number.

42557147235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42557147235 is a deficient number, since it is larger than the sum of its proper divisors (31208574717).

42557147235 is a wasteful number, since it uses less digits than its factorization.

42557147235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945714394 (or 945714391 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 45.

The spelling of 42557147235 in words is "forty-two billion, five hundred fifty-seven million, one hundred forty-seven thousand, two hundred thirty-five".