42737057771 has 2 divisors, whose sum is σ = 42737057772. Its totient is φ = 42737057770.

The previous prime is 42737057743. The next prime is 42737057851. The reversal of 42737057771 is 17775073724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42737057771 is a prime.

It is a super-2 number, since 2×42737057771² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42737057071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21368528885 + 21368528886.

It is an arithmetic number, because the mean of its divisors is an integer number (21368528886).

Almost surely, 2^42737057771 is an apocalyptic number.

42737057771 is a deficient number, since it is larger than the sum of its proper divisors (1).

42737057771 is an equidigital number, since it uses as much as digits as its factorization.

42737057771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016840, while the sum is 50.

The spelling of 42737057771 in words is "forty-two billion, seven hundred thirty-seven million, fifty-seven thousand, seven hundred seventy-one".