42780074053 has 2 divisors, whose sum is σ = 42780074054. Its totient is φ = 42780074052.

The previous prime is 42780074023. The next prime is 42780074087. The reversal of 42780074053 is 35047008724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41183831844 + 1596242209 = 202938^2 + 39953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42780074053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42780073997 and 42780074015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42780074023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21390037026 + 21390037027.

It is an arithmetic number, because the mean of its divisors is an integer number (21390037027).

Almost surely, 2^42780074053 is an apocalyptic number.

It is an amenable number.

42780074053 is a deficient number, since it is larger than the sum of its proper divisors (1).

42780074053 is an equidigital number, since it uses as much as digits as its factorization.

42780074053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 42780074053 in words is "forty-two billion, seven hundred eighty million, seventy-four thousand, fifty-three".