42774251757 has 16 divisors (see below), whose sum is σ = 57358903680. Its totient is φ = 28353344000.

The previous prime is 42774251747. The next prime is 42774251791. The reversal of 42774251757 is 75715247724.

It is a cyclic number.

It is not a de Polignac number, because 42774251757 - 2¹⁵ = 42774218989 is a prime.

It is a super-2 number, since 2×42774251757² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42774251717) 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, 316969 + ... + 431297.

It is an arithmetic number, because the mean of its divisors is an integer number (3584931480).

Almost surely, 2^42774251757 is an apocalyptic number.

It is an amenable number.

42774251757 is a deficient number, since it is larger than the sum of its proper divisors (14584651923).

42774251757 is a wasteful number, since it uses less digits than its factorization.

42774251757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115044.

The product of its digits is 3841600, while the sum is 51.

The spelling of 42774251757 in words is "forty-two billion, seven hundred seventy-four million, two hundred fifty-one thousand, seven hundred fifty-seven".